One author
Two or three authors
Four or more authors
Unknown author
Corporation, organization, or government agency as author
Two or more works by the same author
Basic format
Anthology or edited collection
Work in an anthology or edited collection
Introduction, preface, foreword, or afterword
Translation
Graphic narrative
Religious work
Multivolume work
Later edition of a book
Republished book
Title within a title
Book in a series
Dictionary entry or article in another reference book
Government document
Published proceedings of a conference
Pamphlet or brochure
Doctoral dissertation
From a scholarly journal
From a newspaper
From a magazine
Editorial or letter to the editor
Review
Lecture or public address
Letter
Map or chart
Cartoon or comic strip
Advertisement
Work of art
Musical composition
Performance
Television or radio program
Podcast
Film
Online video
Music recording
Interview
Web page or other document on a Web site
Entire Web site
Online scholarly project
Book or a short work in an online scholarly project
Blog
Wiki article
Discussion group or newsgroup posting
E-mail message
Nonperiodical publication on a CD-ROM
Computer software