Plagiarism

Excellent guide to avoiding plagiarism and references. It is especially good on problems with paraphrasing in science, which is often not included or treated too simplistically in other materials.

http://ori.dhhs.gov/education/products/plagiarism/

PDF version of the site

http://ori.dhhs.gov/education/products/plagiarism/plagiarism.pdf

Tips from me (Adam Turner) on using text from other papers in engineering and sciences.

http://www.hanyangowl.org/media/references/usingreferencesinthesciences.pdf

A good collection of links on avoing plagiarism from UCLA

http://gsrc.ucla.edu/gwc/resources/citation-practices.html

Video presentation on using references and avoiding plagiarism (general academic writing).

http://www.unc.edu/depts/wcweb/esl/videos.html

Using sources

Format of references for all fields, designed for undergraduates

http://www.dianahacker.com/resdoc/

Reporting verbs

Useful link on reporting verbs (verbs used to refer to other sources) but better for social sciences and not as useful for sciences.

http://www.writing.utoronto.ca/advice/english-as-a-second-language/referring-to-sources

Paraphrasing

How to use sentences from other papers and rewrite them in your own words.

http://www.monash.edu.au/lls/llonline/writing/information-technology/sources/2.5.3.xml