APA (7th ed.) Citation

Russwurm, L. H., & Sommerville, E. (1974). Man's natural environment: A systems approach. Duxbury Press.

Chicago Style (17th ed.) Citation

Russwurm, Lorne H., and Edward Sommerville. Man's Natural Environment: A Systems Approach. North Scituate, Mass: Duxbury Press, 1974.

MLA (9th ed.) Citation

Russwurm, Lorne H., and Edward Sommerville. Man's Natural Environment: A Systems Approach. Duxbury Press, 1974.