Free, J. B. (1993). Insect pollination of crops (2° ed.). London: Academic Press.
Chicago Style CitationFree, John B. Insect Pollination of Crops. 2° ed. London: Academic Press, 1993.
MLA CitationFree, John B. Insect Pollination of Crops. 2° ed. London: Academic Press, 1993.
Warning: These citations may not always be 100% accurate.