Cita APA (7a ed.)

Schwartz, M., & O'Connor, J. R. (1984). Exploring a changing world. Globe Book.

Cita Chicago Style (17a ed.)

Schwartz, Melvin, y John R. O'Connor. Exploring a Changing World. New York [u.a.]: Globe Book, 1984.

Cita MLA (9a ed.)

Schwartz, Melvin, y John R. O'Connor. Exploring a Changing World. Globe Book, 1984.