Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (8ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.