Cita APA (7a ed.)

Holt, G., & West, N. W. (2011). Astronomy (Rev. 2nd ed.). National Science Teachers Association.

Cita Chicago Style (17a ed.)

Holt, Geoff, y Nancy W. West. Astronomy. Rev. 2nd ed. Arlington, Va.: National Science Teachers Association, 2011.

Cita MLA (8a ed.)

Holt, Geoff, y Nancy W. West. Astronomy. Rev. 2nd ed. National Science Teachers Association, 2011.