Lubchenco, L. O. (1976). The high risk infant. Saunders.
Lua i Stíl Chicago (17ú heag.)Lubchenco, Lula O. The High Risk Infant. Philadelphia: Saunders, 1976.
Lua MLA (9ú heag.)Lubchenco, Lula O. The High Risk Infant. Saunders, 1976.
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