APA (7th ed.) Citation

Geological Survey (U.S.) & ProQuest (Firm). (1906). The underflow of the South Platte Valley. [publisher not identified].

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and ProQuest (Firm). The Underflow of the South Platte Valley. Washington: [publisher not identified], 1906.

MLA (9th ed.) Citation

Geological Survey (U.S.) and ProQuest (Firm). The Underflow of the South Platte Valley. [publisher not identified], 1906.

Warning: These citations may not always be 100% accurate.