The erosional history of the driftless area
By: by Arthur C. Trowbridge.
Series: University of Iowa studies in natural history ...; vol. IX, no. 3; University of Iowa studies.; 1st ser., no. 40. January 1, 1921; University of Iowa studies in natural history (1918),; v. 9, no. 3.
Publisher: The University
Published: 1921
Place of publication: Iowa City
Language: eng
Number of pages: 127
Subjects: Erosion.