Cita APA (7a ed.)

Atkinson, W. R., & Merrian, D. F. (1950). Description of Dakota (cretaceous) Core from Cheyenne County, Kansas. University of Kansas.

Cita Chicago Style (17a ed.)

Atkinson, W. R., y D. F. Merrian. Description of Dakota (cretaceous) Core from Cheyenne County, Kansas. Lawrense, Kansas: University of Kansas, 1950.

Cita MLA (9a ed.)

Atkinson, W. R., y D. F. Merrian. Description of Dakota (cretaceous) Core from Cheyenne County, Kansas. University of Kansas, 1950.