APA
Tyler V. E. B. L. R. &. R. J. E., . (1976). Pharmacognosy. Lea & Febiger, Philadelphia: .
Chicago
Tyler Varro E Brady Lynn R & Robbers James E, . 1976. Pharmacognosy. Lea & Febiger, Philadelphia: .
Harvard
Tyler V. E. B. L. R. &. R. J. E., . (1976). Pharmacognosy. Lea & Febiger, Philadelphia: .
MLA
Tyler Varro E Brady Lynn R & Robbers James E, . Pharmacognosy. Lea & Febiger, Philadelphia: . 1976.