APA način citiranja (7. izdanje)

van Hoorn, W., & Keilmann, N. (1997). Birth expectations and their use in fertility forecasting.

Čikaški stil citiranja (17. izdanje)

van Hoorn, Wim, i Nico Keilmann. Birth Expectations and Their Use in Fertility Forecasting. Luxembourg, 1997.

MLA način citiranja (8. izdanje)

van Hoorn, Wim, i Nico Keilmann. Birth Expectations and Their Use in Fertility Forecasting. 1997.