APA (7th ed.) Citation

Devinney, E., Smith, H., & Sofia, S. (1975). Contemporary astronomy (1975). Charles E. Merrill.

Chicago Style (17th ed.) Citation

Devinney, E.J, H. Smith, and S. Sofia. Contemporary Astronomy (1975). Columbus, Ohio: Charles E. Merrill, 1975.

MLA (9th ed.) Citation

Devinney, E.J, et al. Contemporary Astronomy (1975). Charles E. Merrill, 1975.