Wallis, T. E. (1955). Textbook of pharmacognosy. J. and A. Churchill.
Cita Chicago Style (17a ed.)Wallis, Thomas Edward. Textbook of Pharmacognosy. London: J. and A. Churchill, 1955.
Cita MLA (9a ed.)Wallis, Thomas Edward. Textbook of Pharmacognosy. J. and A. Churchill, 1955.
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