When writing papers, it is very important to acknowledge the sources of information used. This can be done in a variety of styles (CSE, APA, MLA, etc.). Find out from your professor which style should be used before you begin.
Books that may be helpful when you are preparing a paper:
Scientific style and format: the CSE manual for authors, editors, and publishers
T 11 .S386 2006 Ref
A short guide to writing about biology
QH 304 .P43 2007 Ref
Writing papers in the biological sciences
QH 304 .M36 2006 Ref
A student handbook for writing in biology
QH 304 .K59 2005 General
APA style guide to electronic references
BF 76.7 .P833 2007 Ref
Publication manual of the American Psychological Association
BF 76.7 .P83 2001 Ref
MLA handbook for writers of research papers
LB 2369 .G53 2003 Ref
The National Research Press has manuscript guidelines available online for each of its journals. For example, the Canadian Journal of Botany has these manuscript guidelines available under "Instructions to Authors".
Library's Revised APA Handout (6th ed.)