APA (7th ed.) Citation

Yapa, G., De Silva, M. A. T., & De Silva, E. D. (2004). Trends and shifts in institutional productivity: Natural products chemistry research in Sri Lanka. Research Evaluation, 13(3), 167.

Chicago Style (17th ed.) Citation

Yapa, Geethika, M. A. T. De Silva, and E. Dilip De Silva. "Trends and Shifts in Institutional Productivity: Natural Products Chemistry Research in Sri Lanka." Research Evaluation 13, no. 3 (2004): 167.

MLA (9th ed.) Citation

Yapa, Geethika, et al. "Trends and Shifts in Institutional Productivity: Natural Products Chemistry Research in Sri Lanka." Research Evaluation, vol. 13, no. 3, 2004, p. 167.