Cita APA (7a ed.)

Clark, M. G., & Shaw, A. B. (1968). Paleontology of Northwestern Vermont: XV Trilobites of the upper Cambrian Gorge Formatio (lower part of bed 3).

Cita Chicago Style (17a ed.)

Clark, Mary Gilman, y Alan B. Shaw. Paleontology of Northwestern Vermont: XV Trilobites of the Upper Cambrian Gorge Formatio (lower Part of Bed 3). 1968.

Cita MLA (8a ed.)

Clark, Mary Gilman, y Alan B. Shaw. Paleontology of Northwestern Vermont: XV Trilobites of the Upper Cambrian Gorge Formatio (lower Part of Bed 3). 1968.