APA (7th ed.) Citation

Darton, N. H. (1906). Geology and underground waters of the Arkansas Valley in eastern Colorado. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Darton, Nelson Horatio. Geology and Underground Waters of the Arkansas Valley in Eastern Colorado. Washington: Govt. Print. Off, 1906.

MLA (9th ed.) Citation

Darton, Nelson Horatio. Geology and Underground Waters of the Arkansas Valley in Eastern Colorado. Govt. Print. Off, 1906.