APA
Rajapakse R A, Gunasena W A S & Joganathan B. (1976). Use of pitch oil in natural rubber compounding. : Journal of the Rubber Research Institute of Sri Lanka.
Chicago
Rajapakse R A, Gunasena W A S and Joganathan B. 1976. Use of pitch oil in natural rubber compounding. : Journal of the Rubber Research Institute of Sri Lanka.
Harvard
Rajapakse R A, Gunasena W A S and Joganathan B. (1976). Use of pitch oil in natural rubber compounding. : Journal of the Rubber Research Institute of Sri Lanka.
MLA
Rajapakse R A, Gunasena W A S and Joganathan B. Use of pitch oil in natural rubber compounding. : Journal of the Rubber Research Institute of Sri Lanka. 1976.