APA aipamena

Peter, D. L. (1969). The Peter Principle: Why Things always go Wrong. Penguin.

Chicago Style aipamena

Peter, Dr. Laurence. The Peter Principle: Why Things Always Go Wrong. Penguin, 1969.

MLA aipamena

Peter, Dr. Laurence. The Peter Principle: Why Things Always Go Wrong. Penguin, 1969.