APA

International Union of Pure and Applied Chemistry, . (1968). The chemistry of natural products. London: Butterworths.

Chicago

International Union of Pure and Applied Chemistry, . 1968. The chemistry of natural products. London: Butterworths.

Harvard

International Union of Pure and Applied Chemistry, . (1968). The chemistry of natural products. London: Butterworths.

MLA

International Union of Pure and Applied Chemistry, . The chemistry of natural products. London: Butterworths. 1968.