347913 Penck, W., Boswell, K. C., & Czech, H. Morphological analysis of land forms: A contribution to physical geology.
Chicago Style (17th ed.) Citation347913 Penck, Walther, Katherine Cumming Boswell, and Hella Czech. Morphological Analysis of Land Forms: A Contribution to Physical Geology.
MLA (9th ed.) Citation347913 Penck, Walther, et al. Morphological Analysis of Land Forms: A Contribution to Physical Geology.
Warning: These citations may not always be 100% accurate.