Philippines National Environmental Protection Council, Philippines Natural Resources Management Center Resource Policy and Strategy Research Division, & National Conservation Conference on Natural Resources (1st : 1981 : Philippine Plaza Hotel) IV.Title. (1981). First national conservation conference on natural resources: Conducted at the Philippine Plaza Hotel, 9-12 December 1981. Public Information Office, Natural Resources Management Center.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippines National Environmental Protection Council, Philippines Natural Resources Management Center Resource Policy and Strategy Research Division, و National Conservation Conference on Natural Resources (1st : 1981 : Philippine Plaza Hotel) IV.Title. First National Conservation Conference on Natural Resources: Conducted at the Philippine Plaza Hotel, 9-12 December 1981. [Quezon City]: Public Information Office, Natural Resources Management Center, 1981.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippines National Environmental Protection Council, et al. First National Conservation Conference on Natural Resources: Conducted at the Philippine Plaza Hotel, 9-12 December 1981. Public Information Office, Natural Resources Management Center, 1981.