APA (7th ed.) Citation

Cooper, B. N. (1953). Trilobites from the lower Champlainian formations of the Appalachian Valley. [Geological Society of America].

Chicago Style (17th ed.) Citation

Cooper, Byron Nelson. Trilobites from the Lower Champlainian Formations of the Appalachian Valley. [New York]: [Geological Society of America], 1953.

MLA (8th ed.) Citation

Cooper, Byron Nelson. Trilobites from the Lower Champlainian Formations of the Appalachian Valley. [Geological Society of America], 1953.