Παραπομπή APA

Pasachoff, J. M. (1979). Astronomy: From the earth to the universe. W B Saunders.

Παραπομπή Chicago Style

Pasachoff, Jay M. Astronomy: From the Earth to the Universe. Philadelphia: W B Saunders, 1979.

Παραπομπή MLA

Pasachoff, Jay M. Astronomy: From the Earth to the Universe. W B Saunders, 1979.