Mayko, Rudolph Walter 1918- creator Smith, George Kinnear 1919- United States Soil Conservation Service. text bibliography dcu Washington] U.S. Dept. of Agriculture, Soil Conservation Service 1966 monographic eng

print

i, 89 p. illus., maps (part fold. col.) 28 cm. [by R. W. Mayko and George K. Smith. Fieldwork by George K. Smith and others. Cover title. "Literature cited": p. 87-88. Soil surveys Oregon Crook County Soils Oregon Crook County Maps S591 .A22 ser. 1955, no. 12 agr66000064 U.S. Nat'l Agr. Libr. 860425 20260227111024.0 agr66000064