APA
Singh R P, Chaudhuri D, Mandal D & Sarma A C. (1999). Effect of different levels of N, P and K on growth of immature rubber in lower Brahmaputra valley of Assam. : Indian Journal of Natural Rubber Research.
Chicago
Singh R P, Chaudhuri D, Mandal D and Sarma A C. 1999. Effect of different levels of N, P and K on growth of immature rubber in lower Brahmaputra valley of Assam. : Indian Journal of Natural Rubber Research.
Harvard
Singh R P, Chaudhuri D, Mandal D and Sarma A C. (1999). Effect of different levels of N, P and K on growth of immature rubber in lower Brahmaputra valley of Assam. : Indian Journal of Natural Rubber Research.
MLA
Singh R P, Chaudhuri D, Mandal D and Sarma A C. Effect of different levels of N, P and K on growth of immature rubber in lower Brahmaputra valley of Assam. : Indian Journal of Natural Rubber Research. 1999.