Cita APA

(1971). International population Conference =: Congrès International de la Population. Liège: International Union for the scientific study of population.

Citación estilo Chicago

International Population Conference =: Congrès International De La Population. Liège: International Union for the scientific study of population, 1971.

Cita MLA

International Population Conference =: Congrès International De La Population. Liège: International Union for the scientific study of population, 1971.