APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

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