APA Style

Seeds, Michael A.. (1993). Horizons : exploring the universe. (4 th ed). USA: Wadsworth.

Chicago Style

Seeds, Michael A.. Horizons : exploring the universe.. 4 th ed USA: Wadsworth, 1993. Textbook.

MLA Style

Seeds, Michael A.. Horizons : exploring the universe.. 4 th ed USA: Wadsworth, 1993. Textbook.

Turabian Style

Seeds, Michael A.. Horizons : exploring the universe.. 4 th ed USA: Wadsworth, 1993. Textbook.