/sci/ - Science & Math

Hey guys,

I know this isn't really the usual kind of question but as I am trying to cite a medical pdf/ebook, I think this is the place to ask.
Basically I'm trying to cite this pdf, but I'm totally overwhelmed by all the different styles and different rules regarding the type of source.

http://www.nal.usda.gov/fnic/DRI/DRI_Energy/energy_full_report.pdf

> Should I use AMA style? I found most about APA and AML but they don't seem to be the style for scientific sources.
>Should I cite this as a book, ebook, article, online article, etc... ?

Thank you very much!

P.S.: the pdf is the full report of the 'Food and Nutrition Board, Institute of Medicine (IOM) of the U.S. National Academy of Sciences' on their DRI's (Dietary Reference Intakes)