APA (7th ed.) Citation

Schumacher, E. F. (1977). A guide for the perplexed. Harper & Row.

Chicago Style (17th ed.) Citation

Schumacher, E. F. A Guide for the Perplexed. New York: Harper & Row, 1977.

MLA (9th ed.) Citation

Schumacher, E. F. A Guide for the Perplexed. Harper & Row, 1977.