Cita APA (7a ed.)

American Oil Chemists' Society. (1990). Official methods and recommended practices of the American Oil Chemists' Society (4th ed.). American Oil Chemists' Society.

Cita Chicago Style (17a ed.)

American Oil Chemists' Society. Official Methods and Recommended Practices of the American Oil Chemists' Society. 4th ed. Champaign, Illinois: American Oil Chemists' Society, 1990.

Cita MLA (9a ed.)

American Oil Chemists' Society. Official Methods and Recommended Practices of the American Oil Chemists' Society. 4th ed. American Oil Chemists' Society, 1990.