APA

Chapman R. F., . (1969). The insects: structure and function. New York: American Elsevier Pub. Co.

Chicago

Chapman R F, . 1969. The insects: structure and function. New York: American Elsevier Pub. Co.

Harvard

Chapman R. F., . (1969). The insects: structure and function. New York: American Elsevier Pub. Co.

MLA

Chapman R F, . The insects: structure and function. New York: American Elsevier Pub. Co. 1969.