Cita APA (7th ed.)

Stefferud, A., & Osborn, R. (1953). The Wonderful world of books. New American Library.

Cita Chicago (17th ed.)

Stefferud, Alfred, i Robert Osborn. The Wonderful World of Books. [New York]: New American Library, 1953.

Cita MLA (9th ed.)

Stefferud, Alfred, i Robert Osborn. The Wonderful World of Books. New American Library, 1953.