APA

Mann J., Davidson R., Hobbs J. B., Banthorpe D. V. & Harborne J. B. (1994). Natural Products. London: Longman scientific.

Chicago

Mann J, Davidson R.S, Hobbs J B, Banthorpe D V and Harborne J B. 1994. Natural Products. London: Longman scientific.

Harvard

Mann J., Davidson R., Hobbs J. B., Banthorpe D. V. and Harborne J. B. (1994). Natural Products. London: Longman scientific.

MLA

Mann J, Davidson R.S, Hobbs J B, Banthorpe D V and Harborne J B. Natural Products. London: Longman scientific. 1994.