APA (7th ed.) Citation

Parker, S. P., & Pasachoff, J. M. (1993). McGraw-Hill encyclopedia of astronomy. McGraw-Hill.

Chicago Style (17th ed.) Citation

Parker, Sybil P., and Jay M. Pasachoff. McGraw-Hill Encyclopedia of Astronomy. New York: McGraw-Hill, 1993.

MLA (9th ed.) Citation

Parker, Sybil P., and Jay M. Pasachoff. McGraw-Hill Encyclopedia of Astronomy. McGraw-Hill, 1993.