Encyclopedia of camps and ghettos, 1933 - 1945 Early camps, youth camps, and concentration camps and subcamps under the SS-Business Administration Main Office (WVHA) / vol. ed.: Geoffrey P. Megargee Vol. 1 Early camps, youth camps, and concentration camps and subcamps under the SS-Business Administration Main Office (WVHA) / vol. ed.: Geoffrey P. Megargee Pt. A