Akbar, S. R. H., Vallejo, R. M., & Buenrostro, J. J. C. (1986). Resource sharing among agricultural libraries, information and documentation centers in Pakistan with implications to the formation of Pakistan Agricultural Information System (PAINS).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Akbar, Syed Riazul Hasan, Rosa M. Vallejo, و Juan Jr. C. Buenrostro. Resource Sharing Among Agricultural Libraries, Information and Documentation Centers in Pakistan with Implications to the Formation of Pakistan Agricultural Information System (PAINS). Quezon City : Institute of Library Science, University of the Philippines Diliman, 1986.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Akbar, Syed Riazul Hasan, et al. Resource Sharing Among Agricultural Libraries, Information and Documentation Centers in Pakistan with Implications to the Formation of Pakistan Agricultural Information System (PAINS). 1986.