APA (7th ed.) Citation

Hostettmann, K., & Lea, P. J. (1987). Biologically active natural products. Clarendon Press ; Oxford University Press.

Chicago Style (17th ed.) Citation

Hostettmann, K., and Peter J. Lea. Biologically Active Natural Products. Oxford : New York: Clarendon Press ; Oxford University Press, 1987.

MLA (9th ed.) Citation

Hostettmann, K., and Peter J. Lea. Biologically Active Natural Products. Clarendon Press ; Oxford University Press, 1987.