APA
Kumar N. ., Abdul khader ., Irulappan I. . & Rangaswami P. . (1997). Introduction to spices,plantation crops, medicinal and aromatic plants. New Delhi: Oxford & IBH Publishing company.
Chicago
Kumar N, Abdul khader, Irulappan I and Rangaswami P. 1997. Introduction to spices,plantation crops, medicinal and aromatic plants. New Delhi: Oxford & IBH Publishing company.
Harvard
Kumar N. ., Abdul khader ., Irulappan I. . and Rangaswami P. . (1997). Introduction to spices,plantation crops, medicinal and aromatic plants. New Delhi: Oxford & IBH Publishing company.
MLA
Kumar N, Abdul khader, Irulappan I and Rangaswami P. Introduction to spices,plantation crops, medicinal and aromatic plants. New Delhi: Oxford & IBH Publishing company. 1997.