Παραπομπή APA

John, D. M. (1962). supervision: A synthesis of thought and action. Mcgraw Hill.

Παραπομπή Chicago Style

John, D. Mcneil. Supervision: A Synthesis of Thought and Action. New York: Mcgraw Hill, 1962.

Παραπομπή MLA

John, D. Mcneil. Supervision: A Synthesis of Thought and Action. Mcgraw Hill, 1962.