Cita APA

Wallis,, T. (1997). Text Book of Pharmacognosy (5th ed.). CBS.

Chicago Edition Citation

Wallis,, T.E. Text Book of Pharmacognosy. 5th ed. Delhi: CBS, 1997.

Cita MLA

Wallis,, T.E. Text Book of Pharmacognosy. 5th ed. CBS, 1997.