Seng, O. G., Estavillo, C. C., & Nera, C. M. (1981). A survey of college and university libraries in Region I: Its implications to the Private Higher Education (PHE) Library Standards. Institute of Library Science, University of the Philippines Diliman.
Chicago Style (17th ed.) CitationSeng, Olga G., Corazon C. Estavillo, and Corazon M. Nera. A Survey of College and University Libraries in Region I: Its Implications to the Private Higher Education (PHE) Library Standards. Quezon City: Institute of Library Science, University of the Philippines Diliman, 1981.
ציטוט MLASeng, Olga G., et al. A Survey of College and University Libraries in Region I: Its Implications to the Private Higher Education (PHE) Library Standards. Institute of Library Science, University of the Philippines Diliman, 1981.