APA (7th ed.) Citation

Keller, H. R. e. (1929). The reader's digest of books (New and greatly enl. ed.). Macmillan company.

Chicago Style (17th ed.) Citation

Keller, Helen Rex ed. The Reader's Digest of Books. New and greatly enl. ed. New York: Macmillan company, 1929.

MLA (9th ed.) Citation

Keller, Helen Rex ed. The Reader's Digest of Books. New and greatly enl. ed. Macmillan company, 1929.