APA (7th ed.) Citation

Penrose, B., & Courtiour, R. (1978). The Pencourt file (1st U.S. ed.). Harper & Row.

Chicago Style (17th ed.) Citation

Penrose, Barrie, and Roger Courtiour. The Pencourt File. 1st U.S. ed. New York: Harper & Row, 1978.

MLA (9th ed.) Citation

Penrose, Barrie, and Roger Courtiour. The Pencourt File. 1st U.S. ed. Harper & Row, 1978.