APA-viite

Demeny, P. (1989). Demography and the limits to growth. Working papers / Population Council, Research Division 2.

Chicago-tyylinen lähdeviittaus

Demeny, Paul. "Demography and the Limits to Growth." Working Papers / Population Council, Research Division 2 1989.

MLA-viite

Demeny, Paul. "Demography and the Limits to Growth." Working Papers / Population Council, Research Division 2 1989.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.