Cita APA (7a ed.)

Payne-Gaposchkin, C., & Haramundanis, K. (1970). Introduction to astronomy. Prentice Hall.

Cita Chicago Style (17a ed.)

Payne-Gaposchkin, Cecilia, y Katherine Haramundanis. Introduction to Astronomy. New Jersey: Prentice Hall, 1970.

Cita MLA (9a ed.)

Payne-Gaposchkin, Cecilia, y Katherine Haramundanis. Introduction to Astronomy. Prentice Hall, 1970.