D. V. Nalivkin
Larsen
Shuoshi Ma
Halina Klatkowa
G. A. Rae
Asael E. Palmer
J. K. Ganguly
Unknown Author
Chunxing Hai
Eth Clifford
A. E. Dʹi͡achenko
Food and Agriculture Organization of the United Nations. Land and Water Development Division.
Kellogg, Charles E.
J. H. Stallings
D. G. Craig
W. S. Chepil
J. W. Turelle
United States. Soil Conservation Service.
United States. Soil Conservation Service