APA (7th ed.) Citation

The Reader's digest. (1950). Reader's digest condensed books. [s.n.].

Chicago Style (17th ed.) Citation

The Reader's digest. Reader's Digest Condensed Books. Pleasantville, N.Y: [s.n.], 1950.

MLA (9th ed.) Citation

The Reader's digest. Reader's Digest Condensed Books. [s.n.], 1950.