Cita APA

Frejka, T. 1. (1980). Fertility trends and policies: Czechoslovakia in the 1970s. New York: The Population Council.

Citación estilo Chicago

Frejka, Tomas 1932-. Fertility Trends and Policies: Czechoslovakia in the 1970s. New York: The Population Council, 1980.

Cita MLA

Frejka, Tomas 1932-. Fertility Trends and Policies: Czechoslovakia in the 1970s. New York: The Population Council, 1980.