If the electronic source does not have page numbers, it is appropriate to use internal divisions such as section numbers or chapter heading to assist the reader in finding the original information. Repeated Citations Repeat citation each time it is necessary. Be sure that every cited work is included in the reference section and that the spellings of the authors' names and dates of publications are accurate in both citations and references. References Citations direct attention to the more detailed references, which provide complete source information to aid further research. The following examples show proper forms for common kinds of references, Note that references are listed alphabetically by author.
All lines are double-spaced, and all after the first in an entry are indented.
When several works by the same author are listed, they should appear in chronological order, with the earliest publication first. Titles of articles and papers are not enclosed in quotation marks. Issue number and month of publication are omitted unless indispensable for identification. Use first names rather than initials in references. A Modern Guide to English Usage.