APA

Simpson R. D., Sedjo R. A. & Reid J. W.Valuing biodiversity for use in pharmaceutical research. : .

Chicago

Simpson R David, Sedjo Roger A and Reid John W.Valuing biodiversity for use in pharmaceutical research. : .

Harvard

Simpson R. D., Sedjo R. A. and Reid J. W.Valuing biodiversity for use in pharmaceutical research. : .

MLA

Simpson R David, Sedjo Roger A and Reid John W.: . .