APA (7th ed.) Citation

Riggs, E. A. (1960). Major basins and structural features of United States. Geographical Press.

Chicago Style (17th ed.) Citation

Riggs, E. A. Major Basins and Structural Features of United States. Maplewood, N.J.: Geographical Press, 1960.

MLA (8th ed.) Citation

Riggs, E. A. Major Basins and Structural Features of United States. Geographical Press, 1960.