APA (7th ed.) Citation

Laycock, G., Russell, C. M., Miller, A. J., & Dunn, H. (1988). The mountain men. Outdoor Life Books.

Chicago Style (17th ed.) Citation

Laycock, George, Charles M. Russell, Alfred Jacob Miller, and Harvey Dunn. The Mountain Men. Danbury, CT: Outdoor Life Books, 1988.

MLA (9th ed.) Citation

Laycock, George, et al. The Mountain Men. Outdoor Life Books, 1988.