See the Chicago Manual of Style — call number: Z253 .U69 2017
A DOI (short for Digital Object Identifier) is a unique number assigned to any digital object like an article, a data set, image, etc. The doi starts with the number 10 and might contain numbers, letters, and often slashes and periods.
So, for the following article:
The doi number is 10.1037/0003-066x.55.1.68
How to cite an article with a DOI:
CMOS (Chicago Manual of Style)
Ryan, Richard M., and Edward L. Deci. "Self-determination Theory and the Facilitation of Intrinsic Motivation, Social Development, and Well-being." American Psychologist 55, no. 1 (2000): 68-78. http://dx.doi.org/10.1037/0003-066X.55.1.68
For more information on DOIs, visit https://www.doi.org/
Citation managers like RefWorks, EndNote, Mendeley and Zotero help you track and organize your citations, so that when you're writing your paper, you can easily cite your sources. Citation managers also help you insert citations, create endnotes and bibliographies.
Annotated bibliographies differ from abstracts or summaries of articles. They are essentially a list of sources (journal or news articles, books, websites, datasets, etc.) on a particular topic with brief annotations that summarizes the source and evaluates its usefulness as a source. The list is usually in alphabetical order by author and employs a single citation style.
Here are a few links to help you better understand and construct an annotated bibliography.