APA (7th ed.) Citation

Coward, T. A., & Thorburn, A. (1939). The birds of the British isles and their eggs (6th ed.). F. Warne & Co..

Chicago Style (17th ed.) Citation

Coward, T. A., and Archibald Thorburn. The Birds of the British Isles and Their Eggs. 6th ed. London ; New York: F. Warne & Co., 1939.

MLA (9th ed.) Citation

Coward, T. A., and Archibald Thorburn. The Birds of the British Isles and Their Eggs. 6th ed. F. Warne & Co., 1939.