APA aipamena

Garratt, F. N., & Jones, E. A. (1977). Perinatal mortality rates by birth weight.

Chicago Style aipamena

Garratt, F N., and E A. Jones. Perinatal Mortality Rates By Birth Weight. 1977.

MLA aipamena

Garratt, F N., and E A. Jones. Perinatal Mortality Rates By Birth Weight. 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.