APA aipamena

Rosero Bixby, L. (1992). Fertility and infant mortality in Costa Rica.

Chicago Style aipamena

Rosero Bixby, Luis. Fertility and Infant Mortality in Costa Rica. 1992.

MLA aipamena

Rosero Bixby, Luis. Fertility and Infant Mortality in Costa Rica. 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.