TY - BOOK AU - Jenks, Jeremiah Whipple AU - Lauck, W. Jett TI - The immigration problem : a study of American immigration conditions and needs ET - 4th ed., rev. and enl PB - Funk & Wagnalls PY - 1917 EP - xxv, 605 p., [1] folded leaf of plates UR - https://ci.nii.ac.jp/ncid/BA48903239 ER -