Heelan, J. S., & Judith S. Heelan; Frances W. Ingersoll. (2002). Workbook to Accompany Essentials of human parasitology. Albany, N.Y: Delmar Publishers.
शिकागो स्टाइल उद्धरणHeelan, Judith S., और Judith S. Heelan; Frances W. Ingersoll. Workbook to Accompany Essentials of Human Parasitology. Albany, N.Y: Delmar Publishers, 2002.
एमएलए उद्धरणHeelan, Judith S., और Judith S. Heelan; Frances W. Ingersoll. Workbook to Accompany Essentials of Human Parasitology. Albany, N.Y: Delmar Publishers, 2002.
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