APA (7th ed.) Citation

Collins, R. (1978). The case of the philosophers' ring by Dr. John H. Watson. Crown Publishers.

Chicago Style (17th ed.) Citation

Collins, Randall. The Case of the Philosophers' Ring by Dr. John H. Watson. New York: Crown Publishers, 1978.

MLA (9th ed.) Citation

Collins, Randall. The Case of the Philosophers' Ring by Dr. John H. Watson. Crown Publishers, 1978.