APA引文

Frejka, T. (1980). Fertility trends and policies: Czechoslovakia in the 1970's. The Population Countries.

Chicago Style (17th ed.) Citation

Frejka, Tomas. Fertility Trends and Policies: Czechoslovakia in the 1970's. New York: The Population Countries, 1980.

MLA引文

Frejka, Tomas. Fertility Trends and Policies: Czechoslovakia in the 1970's. The Population Countries, 1980.