Gaya APA
Horwitz, W. (2006).
Official methods of analysis of aoac International 18 th edition, 2005 (18).
Maryland:
Published by AOAC International.
Gaya MLA
Horwitz, William.
"Official methods of analysis of aoac International 18 th edition, 2005".
18
Maryland:
Published by AOAC International,
2006.
Text.