Mansjur, S., & Vallejo, R. M. (1985). Cooperation among agricultural research libraries within the Agency for Agricultural Research and Development (AARD), and the role of the National Library for Agricultural Sciences (NLAS) as the coordinator: Development, problems and prospects.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Mansjur, Surya, و Rosa M. Vallejo. Cooperation Among Agricultural Research Libraries Within the Agency for Agricultural Research and Development (AARD), and the Role of the National Library for Agricultural Sciences (NLAS) as the Coordinator: Development, Problems and Prospects. Quezon City : Institute of Library Science, University of the Philippines Diliman, 1985.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Mansjur, Surya, و Rosa M. Vallejo. Cooperation Among Agricultural Research Libraries Within the Agency for Agricultural Research and Development (AARD), and the Role of the National Library for Agricultural Sciences (NLAS) as the Coordinator: Development, Problems and Prospects. 1985.