(1971). International population conference: Congress international de la population. International union for the scientific study of the population.
Citazione stile Chigago Style (17a edizione)International Population Conference: Congress International De La Population. Liege: International union for the scientific study of the population, 1971.
Citatione MLA (9a ed.)International Population Conference: Congress International De La Population. International union for the scientific study of the population, 1971.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.