Always check with your instructor for his or her preferred format.
Council of Science Editors SMC, editor. Scientific style and format: The CSE manual for authors, editors, and publishers. 7th ed. Reston, VA: The Council; 2006. (print only, find in a library near you)
The CSE number style has been revised and is now consistent with AMA.
Turabian is "essentially the same [style as] The Chicago Manual of Style, 15th edition, with slight modifications for the needs of student writers."
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