Lucile Petry. (1952). The encyclopedia of nursing. Philadelphia: W. B. Saunders.
शिकागो स्टाइल उद्धरणLucile Petry. The Encyclopedia of Nursing. Philadelphia: W. B. Saunders, 1952.
एमएलए उद्धरणLucile Petry. The Encyclopedia of Nursing. Philadelphia: W. B. Saunders, 1952.
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