Viray, J. D., Faderon, R. B., & Ferrer, E. M. (1987). Reading interests, reading habits and information needs of the urban poor in Constitution Hills, Quezon City: A survey with the implication for providing library services for them. Institute of Library Science, University of the Philippines Diliman.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Viray, Jacoba DG, Rosalie B. Faderon, و Elmer M. Ferrer. Reading Interests, Reading Habits and Information Needs of the Urban Poor in Constitution Hills, Quezon City: A Survey with the Implication for Providing Library Services for Them. Quezon City: Institute of Library Science, University of the Philippines Diliman, 1987.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Viray, Jacoba DG, et al. Reading Interests, Reading Habits and Information Needs of the Urban Poor in Constitution Hills, Quezon City: A Survey with the Implication for Providing Library Services for Them. Institute of Library Science, University of the Philippines Diliman, 1987.