APA-Zitierstil (7. Ausg.)

Bluemle, J. P. (1988). Guide to the geology of southeastern North Dakota: Barnes, Cass, Griggs, Ransom, Richland, Sargent, Steele, and Traill Counties (Rev. ed.).

Chicago-Zitierstil (17. Ausg.)

Bluemle, John P. Guide to the Geology of Southeastern North Dakota: Barnes, Cass, Griggs, Ransom, Richland, Sargent, Steele, and Traill Counties. Rev. ed. Grand Forks, ND, 1988.

MLA-Zitierstil (9. Ausg.)

Bluemle, John P. Guide to the Geology of Southeastern North Dakota: Barnes, Cass, Griggs, Ransom, Richland, Sargent, Steele, and Traill Counties. Rev. ed. 1988.