APA Citation

Kier, P. M., & Kier, P. M. (1977). Triassic echinoids. Washington: Smithsonian Institution Press.

Chicago Style Citation

Kier, Porter M., and Porter M. Kier. Triassic Echinoids. Washington: Smithsonian Institution Press, 1977.

MLA Citation

Kier, Porter M., and Porter M. Kier. Triassic Echinoids. Washington: Smithsonian Institution Press, 1977.

Warning: These citations may not always be 100% accurate.