Cita APA (7a ed.)
Schmertmann, C. P. (1999). Fertility estimation from open birth-interval data. Demography, 36(4), 505-520.
Cita Chicago Style (17a ed.)
Schmertmann, Carl P. "Fertility Estimation from Open Birth-interval Data." Demography 36, no. 4 (1999): 505-520.
Cita MLA (9a ed.)
Schmertmann, Carl P. "Fertility Estimation from Open Birth-interval Data." Demography, vol. 36, no. 4, 1999, pp. 505-520.
Precaución: Estas citas no son 100% exactas.