Seeds, M. A., & Backman, D. E. (2014). Horizons: Exploring the universe (Thirteenth edition, International edition.). Brooks/Cole, Cengage Learning.
Chicago Style (17th ed.) CitationSeeds, Michael A., and Dana E. Backman. Horizons: Exploring the Universe. Thirteenth edition, International edition. Australia: Brooks/Cole, Cengage Learning, 2014.
MLA (9th ed.) CitationSeeds, Michael A., and Dana E. Backman. Horizons: Exploring the Universe. Thirteenth edition, International edition. Brooks/Cole, Cengage Learning, 2014.
Warning: These citations may not always be 100% accurate.