Cita APA (7th ed.)
Northrop, J. H. (1915). The organic phosphoric Acid of starch.
Cita Chicago (17th ed.)
Northrop, John Howard. The Organic Phosphoric Acid of Starch. New York, 1915.
Cita MLA (9th ed.)
Northrop, John Howard. The Organic Phosphoric Acid of Starch. 1915.
Atenció: Aquestes cites poden no estar 100% correctes.