APA (7th ed.) Citation

(1971). International population conference: Congress international de la population. International union for the scientific study of the population.

Chicago Style (17th ed.) Citation

International Population Conference: Congress International De La Population. Liege: International union for the scientific study of the population, 1971.

MLA (9th ed.) Citation

International Population Conference: Congress International De La Population. International union for the scientific study of the population, 1971.