APA
Nair A.N.S, Karthikakuttyamma M & Mathew M. (1987). Discriminatory fertilizer usage in rubber: A case study. : Rubber Board Bulletin.
Chicago
Nair A.N.S, Karthikakuttyamma M and Mathew M. 1987. Discriminatory fertilizer usage in rubber: A case study. : Rubber Board Bulletin.
Harvard
Nair A.N.S, Karthikakuttyamma M and Mathew M. (1987). Discriminatory fertilizer usage in rubber: A case study. : Rubber Board Bulletin.
MLA
Nair A.N.S, Karthikakuttyamma M and Mathew M. Discriminatory fertilizer usage in rubber: A case study. : Rubber Board Bulletin. 1987.