APA aipamena

Seeds, M. A. (1989). Horizons: Exploring the universe (3ª ed.). Wadsworth.

Chicago Style aipamena

Seeds, Michael A. Horizons: Exploring the Universe. 3ª ed. Wadsworth, 1989.

MLA aipamena

Seeds, Michael A. Horizons: Exploring the Universe. 3ª ed. Wadsworth, 1989.