APA

Union of american biological societies, . (1931). Biological abstracts: A comprehensive abstracting and indexing journal of the world's literaure in theoretical and applied biology, exclusive of clinical medicine. : Union of american biological societies.

Chicago

Union of american biological societies, . 1931. Biological abstracts: A comprehensive abstracting and indexing journal of the world's literaure in theoretical and applied biology, exclusive of clinical medicine. : Union of american biological societies.

Harvard

Union of american biological societies, . (1931). Biological abstracts: A comprehensive abstracting and indexing journal of the world's literaure in theoretical and applied biology, exclusive of clinical medicine. : Union of american biological societies.

MLA

Union of american biological societies, . Biological abstracts: A comprehensive abstracting and indexing journal of the world's literaure in theoretical and applied biology, exclusive of clinical medicine. : Union of american biological societies. 1931.