APA (7th ed.) Citation

Parker, B. R. (1990). Colliding galaxies: The universe in turmoil. Plenum Press.

Chicago Style (17th ed.) Citation

Parker, Barry R. Colliding Galaxies: The Universe in Turmoil. New York: Plenum Press, 1990.

MLA (9th ed.) Citation

Parker, Barry R. Colliding Galaxies: The Universe in Turmoil. Plenum Press, 1990.