Cita APA (7a ed.)

Trease, G. E., & By Evans , W. C. (1971). Pharmacognosy (10th ed.). Bailliere Tindall.

Cita Chicago Style (17a ed.)

Trease, George Edward, y William Charles By Evans. Pharmacognosy. 10th ed. London: Bailliere Tindall, 1971.

Cita MLA (9a ed.)

Trease, George Edward, y William Charles By Evans. Pharmacognosy. 10th ed. Bailliere Tindall, 1971.