Rubber Research Institute of India, George, P., George, P. J., & Kuruvilla Jacob, C. (2000). Natural rubber: :agromanagement and crop processing. Rubber Research Institute of India.
Čikaški stil citiranjaRubber Research Institute of India, P.J George, P. J. George, i C. Kuruvilla Jacob. Natural Rubber: :agromanagement and Crop Processing. Kottayam: Rubber Research Institute of India, 2000.
MLA način citiranjaRubber Research Institute of India, et al. Natural Rubber: :agromanagement and Crop Processing. Rubber Research Institute of India, 2000.
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