Bureau of Efficiency
EB1.1 Annual Report
Nov. 1, 1918- Oct. 1, 1919 Nov. 1, 1918- Oct. 31, 1919 Nov. 1, 1927- Oct. 31, 1928 Nov. 1, 1927- Oct. 31, 1932
EB1.2 General Publications M31
Bureau of EfficiencyEB1.1 Annual Report Nov. 1, 1918- Oct. 1, 1919 Nov. 1, 1918- Oct. 31, 1919 Nov. 1, 1927- Oct. 31, 1928 Nov. 1, 1927- Oct. 31, 1932 EB1.2 General Publications M31 | ||