Van Emden, H. F. (1972). Aphid technology: With special reference to the study of aphids in the field. Academic Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVan Emden, Helmut Fritz. Aphid Technology: With Special Reference to the Study of Aphids in the Field. London ; New York: Academic Press, 1972.
एमएलए (8वां संस्करण) प्रशस्ति पत्रVan Emden, Helmut Fritz. Aphid Technology: With Special Reference to the Study of Aphids in the Field. Academic Press, 1972.
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