International Population Conference & International Union for the Scientific Study of Population. (1959). International Population Conference: Congres international de la population ; [proceedings] 1959-. [s.n.].
Chicago-referens (17:e uppl.)International Population Conference och International Union for the Scientific Study of Population. International Population Conference: Congres International De La Population ; [proceedings] 1959-. London: [s.n.], 1959.
MLA-referens (9:e uppl.)International Population Conference och International Union for the Scientific Study of Population. International Population Conference: Congres International De La Population ; [proceedings] 1959-. [s.n.], 1959.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.