APA (7th ed.) Citation

Findl, P., & Helczmanovszki, H. (1977). The population of Austria: 1974 world population year. Austrian Academy of Sciences, Inst. of Demography.

Chicago Style (17th ed.) Citation

Findl, Peter, and Heimold Helczmanovszki. The Population of Austria: 1974 World Population Year. Vienna: Austrian Academy of Sciences, Inst. of Demography, 1977.

MLA (9th ed.) Citation

Findl, Peter, and Heimold Helczmanovszki. The Population of Austria: 1974 World Population Year. Austrian Academy of Sciences, Inst. of Demography, 1977.