International Population Conference : Congres International de la Population, Liege, 1973 / International Union for the Scientific Study of Population. International Population Conference (1973 : Liège, Belgium) International Union for the Scientific Study of Population. Population Congresses. Demography Congresses. HB849 .I6154 1973 312.07 INT English or French. Includes bibliographies. Liege : IUSSP, 1973. 1973. 1973 Text 452 p. : eng engfre