APA (7th ed.) Citation

Walker, G. L. (1968). Those difficult years: What parents should know about teen-agers. Ave Maria Press.

Chicago Style (17th ed.) Citation

Walker, Gerald L. Those Difficult Years: What Parents Should Know About Teen-agers. Notre Dame, Ind.: Ave Maria Press, 1968.

MLA (8th ed.) Citation

Walker, Gerald L. Those Difficult Years: What Parents Should Know About Teen-agers. Ave Maria Press, 1968.