APA
(1987). Weed Science in the Tropics. London: John Wiley and Sons.
Chicago
1987. Weed Science in the Tropics. London: John Wiley and Sons.
Harvard
(1987). Weed Science in the Tropics. London: John Wiley and Sons.
MLA
Weed Science in the Tropics. London: John Wiley and Sons. 1987.