APA Citation

Kier, P. M., & Kier, P. M. (1972). Tertiary and mesozoic echinoids of Saudi Arabia. Washington: Smithsonian Institution Press.

Chicago Style Citation

Kier, Porter M., and Porter M. Kier. Tertiary and Mesozoic Echinoids of Saudi Arabia. Washington: Smithsonian Institution Press, 1972.

MLA Citation

Kier, Porter M., and Porter M. Kier. Tertiary and Mesozoic Echinoids of Saudi Arabia. Washington: Smithsonian Institution Press, 1972.

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