Puffer, R. R., & Serrano, C. V. (1987). Patterns of birthweights. Pan American Health Organization, Pan American Sanitary Bureau.
Chicago Style (17th ed.) CitationPuffer, Ruth Rice, and Carlos V. Serrano. Patterns of Birthweights. Washington, D.C., U.S.A: Pan American Health Organization, Pan American Sanitary Bureau, 1987.
ציטוט MLAPuffer, Ruth Rice, and Carlos V. Serrano. Patterns of Birthweights. Pan American Health Organization, Pan American Sanitary Bureau, 1987.
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