Citação norma APA

Frye, J. C., & Leonard, A. B. (1959). Correlation of the Ogallala formation (Neogene) in western Texas with type localities in Nebraska. Bureau of Economic Geology, University of Texas.

Citação norma Chicago

Frye, John Chapman, and A. Byron Leonard. Correlation of the Ogallala Formation (Neogene) in Western Texas with Type Localities in Nebraska. Austin: Bureau of Economic Geology, University of Texas, 1959.

Citação norma MLA

Frye, John Chapman, and A. Byron Leonard. Correlation of the Ogallala Formation (Neogene) in Western Texas with Type Localities in Nebraska. Bureau of Economic Geology, University of Texas, 1959.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.