APA (7th ed.) Citation

Palmer, A. R., & Gatehouse, C. G. (1972). Early and Middle Cambrian trilobites from Antarctica. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Palmer, Allison R., and Colin G. Gatehouse. Early and Middle Cambrian Trilobites from Antarctica. Washington: U.S. Govt. Print. Off, 1972.

MLA (9th ed.) Citation

Palmer, Allison R., and Colin G. Gatehouse. Early and Middle Cambrian Trilobites from Antarctica. U.S. Govt. Print. Off, 1972.