APA (7th ed.) Citation

Philip Allan & Barback, R. H. (1984). The firm its environment. Philip Allan.

Chicago Style (17th ed.) Citation

Philip Allan and R. H. Barback. The Firm Its Environment. New York: Philip Allan, 1984.

MLA (8th ed.) Citation

Philip Allan and R. H. Barback. The Firm Its Environment. Philip Allan, 1984.