APA (7th ed.) Citation

Gaer, J. (1929). How the great religions began (rev. and enlarged edition.). The New American Library.

Chicago Style (17th ed.) Citation

Gaer, Joseph. How the Great Religions Began. rev. and enlarged edition. New York: The New American Library, 1929.

MLA (9th ed.) Citation

Gaer, Joseph. How the Great Religions Began. rev. and enlarged edition. The New American Library, 1929.