Blackman, R. L., & Eastop, V. F. (1984). Aphids on the world's crops: An identification and information guide. Wiley.
Chicago Style (17th ed.) CitationBlackman, R. L., and Victor Frank Eastop. Aphids on the World's Crops: An Identification and Information Guide. Chichester [West Sussex] ; New York: Wiley, 1984.
MLA (8th ed.) CitationBlackman, R. L., and Victor Frank Eastop. Aphids on the World's Crops: An Identification and Information Guide. Wiley, 1984.
Warning: These citations may not always be 100% accurate.