APA (7th ed.) Citation

Bark, J. P. (1989). Retin-A and other youth miracles. Prima Pub..

Chicago Style (17th ed.) Citation

Bark, Joseph P. Retin-A and Other Youth Miracles. Rocklin, CA: Prima Pub., 1989.

MLA (9th ed.) Citation

Bark, Joseph P. Retin-A and Other Youth Miracles. Prima Pub., 1989.