H. Theodoor Verstappen
W. Kenneth Hamblin
Unknown Author
International Geographical Union. Commission on Applied Geomorphology. Subcommission on Geomorphological Mapping
Rodman E. Snead
K. K. Nair
H. J. Fleure
José Lugo Hubp
International Geographical Union. Commission on Geomorphological Survey and Mapping.
A. B. Cruickshank
A. I. Spiridonov
Prithvish Nag
J. T. Coppock
Dietrich Barsch
International Geographical Union. Commission on Applied Geomorphology. Subcommission on Geomorphological Mapping.
José Francisco Araya
D. A. Timofeev
S. V. Ilʹchukov