RefWorks is web-based software that helps researchers gather, manage, store, and generate citations and bibliographies.
Council of Science Editors (CSE) Guides
The Jacobson Center for Writing, Teaching and Learning offers individual help with writing and also this useful guide:
Writing Papers: A Handbook for Students at Smith College
Read "Acknowledging and Documenting Your Sources," pg.49+ in pdf file. Good general information: Use CSE instead of the style formats that are suggested in this publication.