Smithsonian Tropical Research Institute. Center for Tropical Forest Science & Co, L. L. (2006). Forest trees of Palanan, Philippines: A study in population ecology. Center for Integrative and Development Studies, University of the Philippines.
Παραπομπή σε μορφή Chicago (17η εκδ.)Smithsonian Tropical Research Institute. Center for Tropical Forest Science και Leonard L. Co. Forest Trees of Palanan, Philippines: A Study in Population Ecology. Diliman: Center for Integrative and Development Studies, University of the Philippines, 2006.
Παραπομπή σε μορφή MLA (9th εκδ.)Smithsonian Tropical Research Institute. Center for Tropical Forest Science και Leonard L. Co. Forest Trees of Palanan, Philippines: A Study in Population Ecology. Center for Integrative and Development Studies, University of the Philippines, 2006.