Cita APA (7a ed.)

Seeds, M. A. (1986). Foundations of astronomy. Wadsworth.

Cita Chicago Style (17a ed.)

Seeds, Michael A. Foundations of Astronomy. Belmont, Calif: Wadsworth, 1986.

Cita MLA (9a ed.)

Seeds, Michael A. Foundations of Astronomy. Wadsworth, 1986.