Παραπομπή σε μορφή APA (7η εκδ.)

Survey, U. S. G. (1981). Stratigraphy and sedimentary facies of the Madison limestone and associated rocks in parts of Montana, North Dakota, South Dakota, Wyoming and Nebraska. Denver, Colo. : US Geological Survey.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Survey, United States. Geological. Stratigraphy and Sedimentary Facies of the Madison Limestone and Associated Rocks in Parts of Montana, North Dakota, South Dakota, Wyoming and Nebraska. Denver, Colo. : US Geological Survey, 1981.

Παραπομπή σε μορφή MLA (9th εκδ.)

Survey, United States. Geological. Stratigraphy and Sedimentary Facies of the Madison Limestone and Associated Rocks in Parts of Montana, North Dakota, South Dakota, Wyoming and Nebraska. Denver, Colo. : US Geological Survey, 1981.