Gaya APA
Horwitz, W. (1980).
Official Methods of Analysis of The AOAC Thirteenth Edition 1980 (Thirteenth Edition).
Washington DC:
AOAC.
Gaya MLA
Horwitz, W..
Official Methods of Analysis of The AOAC Thirteenth Edition 1980.
Thirteenth Edition
Washington DC:
AOAC,
1980.
Text.