Paper Masters uses the following Citation Manuals

The MLA Handbook is the premier guide for the Modern Language Association's format instructions for term papers written in the area of the Humanities (i.e. English courses, American Studies, etc...).

MLA is the default format that we write all our projects in if a client chooses not to specify exactly what citation style they wish.

Diana Hacker provides excellent examples of MLA formatted research papers here.

The Publication Manual of the American Psychological Association is the guide for citing research papers in the area of the social sciences. Course work in psychology, sociology, nursing, medicine etc... typical require APA style.

Please see Diana Hacker's APA example here.

Chicago Style, or commonly called Turabian style, is a lesser utilized style of citation yet very easy to use. Denoted mainly by its use of footnotes or endnotes, Chicago style is the common citation style used in History papers.

See the following example by Diana Hacker of Chicago Style here.