APA
Pushpa P Goonetilleke S A, Denawake Indra, Silva S M C E & Witharana L P. (1992). Chemical modification of natural rubber. : Journal of the Rubber Research Institute of Sri Lanka.
Chicago
Pushpa P Goonetilleke S A, Denawake Indra, Silva S M C E and Witharana L P. 1992. Chemical modification of natural rubber. : Journal of the Rubber Research Institute of Sri Lanka.
Harvard
Pushpa P Goonetilleke S A, Denawake Indra, Silva S M C E and Witharana L P. (1992). Chemical modification of natural rubber. : Journal of the Rubber Research Institute of Sri Lanka.
MLA
Pushpa P Goonetilleke S A, Denawake Indra, Silva S M C E and Witharana L P. Chemical modification of natural rubber. : Journal of the Rubber Research Institute of Sri Lanka. 1992.