Cita APA (7th ed.)

Seeds, M. A., & Backman, D. E. (2013). The solar system (8th ed.). Books/Cole Cengage Learning.

Cita Chicago (17th ed.)

Seeds, Michael A., i Dana E. Backman. The Solar System. 8th ed. Australia: Books/Cole Cengage Learning, 2013.

Cita MLA (9th ed.)

Seeds, Michael A., i Dana E. Backman. The Solar System. 8th ed. Books/Cole Cengage Learning, 2013.