APA aipamena

Puffer, R. R., & Serrano, C. V. (1987). Patterns of birthweights. Pan American Health Organization, Pan American Sanitary Bureau.

Chicago Style aipamena

Puffer, Ruth Rice, and Carlos V. Serrano. Patterns of Birthweights. Washington, D.C., U.S.A: Pan American Health Organization, Pan American Sanitary Bureau, 1987.

MLA aipamena

Puffer, Ruth Rice, and Carlos V. Serrano. Patterns of Birthweights. Pan American Health Organization, Pan American Sanitary Bureau, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.