Cita APA

Seeds, M. A., & Michael A. Seeds. Horizons: Exploring the universe. Pacific Grove, CA: Brooks/Cole.

Citación estilo Chicago

Seeds, Michael A., y Michael A. Seeds. Horizons: Exploring the Universe. Pacific Grove, CA: Brooks/Cole.

Cita MLA

Seeds, Michael A., y Michael A. Seeds. Horizons: Exploring the Universe. Pacific Grove, CA: Brooks/Cole.