An annotated bibliography is a list of cited sources from books, articles, documents, or websites. Some annotated bibliography summarize a source and some evaluate or assess a source. Your professor will specify the type and citation style of annotated bibliography they would like.
The following example uses APA style (Publication Manual of the American Psychological Association, 6th edition, 2010) for the journal citation:
Waite, L. J., Goldschneider, F. K., & Witsberger, C. (1986). Nonfamily living and the erosion of traditional family orientations among young adults. American Sociological Review, 51, 541-554.
The authors, researchers at the Rand Corporation and Brown University, use data from the National Longitudinal Surveys of Young Women and Young Men to test their hypothesis that nonfamily living by young adults alters their attitudes, values, plans, and expectations, moving them away from their belief in traditional sex roles. They find their hypothesis strongly supported in young females, while the effects were fewer in studies of young males. Increasing the time away from parents before marrying increased individualism, self-sufficiency, and changes in attitudes about families. In contrast, an earlier study by Williams cited below shows no significant gender differences in sex role attitudes as a result of nonfamily living.
This example uses MLA style (MLA Handbook, 8th edition, 2016) for the journal citation:
Waite, Linda J., et al. "Nonfamily Living and the Erosion of Traditional Family Orientations Among Young Adults." American Sociological Review, vol. 51, no. 4, 1986, pp. 541-554.
The authors, researchers at the Rand Corporation and Brown University, use data from the National Longitudinal Surveys of Young Women and Young Men to test their hypothesis that nonfamily living by young adults alters their attitudes, values, plans, and expectations, moving them away from their belief in traditional sex roles. They find their hypothesis strongly supported in young females, while the effects were fewer in studies of young males. Increasing the time away from parents before marrying increased individualism, self-sufficiency, and changes in attitudes about families. In contrast, an earlier study by Williams cited below shows no significant gender differences in sex role attitudes as a result of nonfamily living.
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Olin Library Reference
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Cornell University Library
Ithaca, NY, USA
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An abstract is a descriptive summary of the content offered of a main ideas offered of a book, article, document, or other work. An annotation is often a descriptive and critical summary of the main ideas added after a citation of the analyzed source. The annotation may describe the author's view point and evaluates the source's authority, clarity, and value.
When in doubt, ask your instructor which citation style to use for your paper or project. Some of the most widely used citation styles include:
On compiling an annotated bibliography by 
