Yearbook separate
U.S. Dept. of Agriculture
by Gove Hambidge
U.S.G.P.O. 1941 Yearbook separate no. 1727
所蔵館1館
U.S. Govt. Print. Off. 1940 Yearbook separate no. 1668 , Yearbook of agriculture 1939 ; pt. 1
所蔵館2館