Online Style Guides

American Psychological Association (APA)

American Psychological Association Style Page
Using American Psychological Association (APA) Format  from Purdue University

Modern Language Association (MLA)
Modern Language Association Style Page

MLA Formatting & Style Guide from Purdue University

Chicago Manual of Style (CMOS)
Chicago Manual of Style

Chicago Manual Style from Purdue University

Citation and Style Guides Concordia University’s Guide to citation styles.

Further reading

Psychology with Style: A Hypertext Writing Guide

Guide to Citation Style Guides

Uniform Requirements for Manuscripts Submitted to Biomedical Journals

Citation Machine

Bibliography generator

Easy Bib generator