APA (7th ed.) Citation

Boyd, J. M., & Boyd, I. L. (1990). The Hebrides : a natural history / J. Morton Boyd and Ian L. Boyd: A natural history. Collins.

Chicago Style (17th ed.) Citation

Boyd, J. Morton, and Ian L. Boyd. The Hebrides : A Natural History / J. Morton Boyd and Ian L. Boyd: A Natural History. London: Collins, 1990.

MLA (9th ed.) Citation

Boyd, J. Morton, and Ian L. Boyd. The Hebrides : A Natural History / J. Morton Boyd and Ian L. Boyd: A Natural History. Collins, 1990.

Warning: These citations may not always be 100% accurate.