APA (7th ed.) Citation

Trease, G. E. (1978). Pharmacognosy (11th.). New York.

Chicago Style (17th ed.) Citation

Trease, George Edward. Pharmacognosy. 11th. cassel & collier macmillan publisher Ltd: New York, 1978.

MLA (9th ed.) Citation

Trease, George Edward. Pharmacognosy. 11th. New York, 1978.