Symposium on Our Environment Singapore & Nanyang University. Institute of Natural Sciences. (1977). Proceedings of Symposium on Our Environment, October 28-30, 1976. Institute of Natural Sciences, College of Graduate Studies, Nanyang University.
Παραπομπή σε μορφή Chicago (17η εκδ.)Symposium on Our Environment Singapore και Nanyang University. Institute of Natural Sciences. Proceedings of Symposium on Our Environment, October 28-30, 1976. [Singapore]: Institute of Natural Sciences, College of Graduate Studies, Nanyang University, 1977.
Παραπομπή σε μορφή MLA (8th εκδ.)Symposium on Our Environment Singapore και Nanyang University. Institute of Natural Sciences. Proceedings of Symposium on Our Environment, October 28-30, 1976. Institute of Natural Sciences, College of Graduate Studies, Nanyang University, 1977.