APA
Trease G. B. &. E. W. C., . (1983). Pharmacognosy .-12th Ed. Bailliere Tindall, Eastbourne: .
Chicago
Trease G B & Evans W C, . 1983. Pharmacognosy .-12th Ed. Bailliere Tindall, Eastbourne: .
Harvard
Trease G. B. &. E. W. C., . (1983). Pharmacognosy .-12th Ed. Bailliere Tindall, Eastbourne: .
MLA
Trease G B & Evans W C, . Pharmacognosy .-12th Ed. Bailliere Tindall, Eastbourne: . 1983.