Cita APA (7a ed.)

Carroll, F. B., Rexford, F. A., & Weed, H. T. (1939). Understanding the Universe. J. C. Winston Co..

Cita Chicago Style (17a ed.)

Carroll, Franklin B., F. A. Rexford, y H. T. Weed. Understanding the Universe. Chicago: J. C. Winston Co., 1939.

Cita MLA (8a ed.)

Carroll, Franklin B., et al. Understanding the Universe. J. C. Winston Co., 1939.