Pasachoff, J. M. (1981). Contemporary astronomy. Saunders College.
Cita Chicago Style (17a ed.)Pasachoff, Jay M. Contemporary Astronomy. Philadelphia: Saunders College, 1981.
Cita MLA (9a ed.)Pasachoff, Jay M. Contemporary Astronomy. Saunders College, 1981.
Precaución: Estas citas no son 100% exactas.