Bull, D. (1982). A growing problem: Pesticides and the Third World poor. OXFAM ; Supplier, Third World Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBull, David. A Growing Problem: Pesticides and the Third World Poor. Oxford : Birmingham, U.K.: OXFAM ; Supplier, Third World Publications, 1982.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBull, David. A Growing Problem: Pesticides and the Third World Poor. OXFAM ; Supplier, Third World Publications, 1982.
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