International Population Conference (1989 : New Delhi, India). (1989). International Population Conference, New Delhi, 1989: Congres international de la population. International Union for the Scientific Study of Population.
Cita Chicago (17th ed.)International Population Conference (1989 : New Delhi, India). International Population Conference, New Delhi, 1989: Congres International De La Population. New Delhi: International Union for the Scientific Study of Population, 1989.
Cita MLA (9th ed.)International Population Conference (1989 : New Delhi, India). International Population Conference, New Delhi, 1989: Congres International De La Population. International Union for the Scientific Study of Population, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.