Stapley, J. H., Gayner, F. C., & Hassall, K. A. (1969). World crop protection. Iliffe.
Chicago Style (17th ed.) CitationStapley, J. H., F. C. Gayner, and K. A. Hassall. World Crop Protection. London: Iliffe, 1969.
MLA (9th ed.) CitationStapley, J. H., et al. World Crop Protection. Iliffe, 1969.