Home › Authors › United Service Organizations (U.S.) 👤 United Service Organizations (U.S.) 5 books Books by United Service Organizations (U.S.) Operation USO Operation USO 1948 USO, five years of service USO, five years of service 1946 U.S.O. speakers' handbook U.S.O. speakers' handbook 1942 Handbook of campaign organizat Handbook of campaign organization and operation for United Service Organizations for National Defense, Inc. .. 1941 USO and you USO and you 1941