Pursell, J. J. (2021). Medicinal herbs for immune defense: 104 trusted recipes for fighting colds, flus, fevers & more. Timber Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPursell, J. J. Medicinal Herbs for Immune Defense: 104 Trusted Recipes for Fighting Colds, Flus, Fevers & More. Portland, Oregon: Timber Press, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPursell, J. J. Medicinal Herbs for Immune Defense: 104 Trusted Recipes for Fighting Colds, Flus, Fevers & More. Timber Press, 2021.
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