Eleventh census of the Unided States, 1890 : insane, feeble-minded deaf and dumb and blind 図書 ·Government Printing Office cir.nii.ac.jp
Report on the insane, feeble-minded, deaf and dumb, and blind in the United States at the eleventh census, 1890 図書 Billings, John Shaw・United States. Census Office ·1895 ·Government Printing Office cir.nii.ac.jp