APA aipamena

Davis, D. R., & Yudkin, J. (1993). Education attainment, nutrition and home conditions.

Chicago Style aipamena

Davis, D R., and J. Yudkin. Education Attainment, Nutrition and Home Conditions. 1993.

MLA aipamena

Davis, D R., and J. Yudkin. Education Attainment, Nutrition and Home Conditions. 1993.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.