Cita APA (7a ed.)

Young, C. A. (1901). The elements of astronomy: A text-book. Ginn.

Cita Chicago Style (17a ed.)

Young, Charles A. The Elements of Astronomy: A Text-book. Boston [etc.]: Ginn, 1901.

Cita MLA (9a ed.)

Young, Charles A. The Elements of Astronomy: A Text-book. Ginn, 1901.