Παραπομπή σε μορφή APA (7η εκδ.)

Caldwell, L. K. (1970). Environment: A challenge for modern society. Pub. for the American Museum of Natural History [by] the Natural History Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Caldwell, Lynton Keith. Environment: A Challenge for Modern Society. Garden City, N.Y: Pub. for the American Museum of Natural History [by] the Natural History Press, 1970.

Παραπομπή σε μορφή MLA (9th εκδ.)

Caldwell, Lynton Keith. Environment: A Challenge for Modern Society. Pub. for the American Museum of Natural History [by] the Natural History Press, 1970.