APA (7th ed.) Citation

Condra, G. E., Scherer, O. J., & Johnson, W. R. (1939). Upper Carboniferous formations in the Lower Platte Valley. University of Nebraska, Conservation and Survey Division.

Chicago Style (17th ed.) Citation

Condra, Geo. E., Oliver Joseph Scherer, and William Russell Johnson. Upper Carboniferous Formations in the Lower Platte Valley. Lincoln: University of Nebraska, Conservation and Survey Division, 1939.

MLA (8th ed.) Citation

Condra, Geo. E., et al. Upper Carboniferous Formations in the Lower Platte Valley. University of Nebraska, Conservation and Survey Division, 1939.