Ayson, R. L. (1994). The Local Water Utilities Administration library user needs and patterns of information and library use.
Chicago Style (17. basım) AtıfAyson, Raul L. The Local Water Utilities Administration Library User Needs and Patterns of Information and Library Use. Quezon City : Institute of Library Science, University of the Philippines Diliman, 1994.
MLA (9th ed.) AtıfAyson, Raul L. The Local Water Utilities Administration Library User Needs and Patterns of Information and Library Use. 1994.
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