Cruz, G. A., Pulhin, J. M., Rebugio, L. L., & Pulhin, F. B. (1998). Sustainable mountain ecosystems: Philippines' challenge for the 21st century : proceedings of forum on sustainable mountain ecosystems. College of Forestry and Natural Resources, University of the Philippines Los Banos.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Cruz, Gladys A., Juan M. Pulhin, Lucrecio L. Rebugio, và Florencia B. Pulhin. Sustainable Mountain Ecosystems: Philippines' Challenge for the 21st Century : Proceedings of Forum on Sustainable Mountain Ecosystems. College, Laguna: College of Forestry and Natural Resources, University of the Philippines Los Banos, 1998.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Cruz, Gladys A., et al. Sustainable Mountain Ecosystems: Philippines' Challenge for the 21st Century : Proceedings of Forum on Sustainable Mountain Ecosystems. College of Forestry and Natural Resources, University of the Philippines Los Banos, 1998.