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.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিCruz, Gladys A., Juan M. Pulhin, Lucrecio L. Rebugio, এবং 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.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিCruz, 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.