Gaya APA

Horwitz, W. (1975). Official Methods Of Analysis Of The Association Of Official Analytical Chemists Twelfth Edition (Twelfth Edition). Washington DC: AOAC.

Gaya MLA

Horwitz, William. "Official Methods Of Analysis Of The Association Of Official Analytical Chemists Twelfth Edition". Twelfth Edition Washington DC: AOAC, 1975. Text.