(1971). International population conference: Congress international de la population. International union for the scientific study of the population.
Cita Chicago (17th ed.)International Population Conference: Congress International De La Population. Liege: International union for the scientific study of the population, 1971.
Cita MLA (9th ed.)International Population Conference: Congress International De La Population. International union for the scientific study of the population, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.