Lin, K. L., & Sin, H. C. (1985). Proceedings of the 3rd symposium on our environment, March 27-29, 1984. Faculty of Science, National University of Singapore.

Lin, Koh Lip, and Hew Choy Sin. Proceedings of the 3rd Symposium on Our Environment, March 27-29, 1984. Singapore: Faculty of Science, National University of Singapore, 1985.

Lin, Koh Lip, and Hew Choy Sin. Proceedings of the 3rd Symposium on Our Environment, March 27-29, 1984. Faculty of Science, National University of Singapore, 1985.