00743cam a22002171 4500 l 29000063 DLC 20260227111532.0 840601s1929 dcu f000 0 eng l 29000063 (OCoLC)21726448 DLC CU OCoLC DLC premarc n-us--- JV6481 1929 United States. Bureau of Immigration. Problems of the immigration service; papers presented at a conference of commissioners and district directors of immigration, Washington, D.C., January, 1929 ... Washington, U.S. Govt. print. off., 1929. 1 p.l., 30 p. 23 cm. United States Emigration and immigration. 35939 35939