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Soil Survey of Wilkes County, North Carolina
Robert Campbell Jurney
· 1921
Soil Survey, Swain County, North Carolina
Samuel Oscar Perkins
, William Gettys
· 1947
Soil Survey of Talbot County, Maryland
Samuel Oscar Perkins
, Merle Hershberger
· 1933
Soil Survey of Greene County, Pennsylvania
Samuel Oscar Perkins
· 1925
Soil Survey of Ashe County, North Carolina
R. B. Hardison
· 1914
Soil Survey of Queen Annes County, Maryland
Samuel Oscar Perkins
, Howard Barr Winant
· 1934
Soil Survey of Lee County, North Carolina
Samuel Oscar Perkins
, Eugene Frizzelle Goldston
· 1933
Soil Survey of Prince Georges County, Maryland
Samuel Oscar Perkins
, Samuel Rankin Bacon
· 1930
Soil Survey, Mitchell County, North Carolina
Samuel Oscar Perkins
· 1952
Soil Survey of Lee County, North Carolina
Samuel Oscar Perkins
, Eugene Frizzell Goldston
· 1936
