APA (7th ed.) Citation

Selsam, M. E., Hamberger, J., & Edward Valauskas Collection of Dinosauriana. (1977). Sea monsters of long ago. Four Winds Press.

Chicago Style (17th ed.) Citation

Selsam, Millicent E., John Hamberger, and Edward Valauskas Collection of Dinosauriana. Sea Monsters of Long Ago. New York: Four Winds Press, 1977.

MLA (8th ed.) Citation

Selsam, Millicent E., et al. Sea Monsters of Long Ago. Four Winds Press, 1977.