Ballesfin, E. R. Environmental aspects of water supply management: A case of Legaspi City and its water supply.
Chicago-viite (17. p.)Ballesfin, Elpha R. Environmental Aspects of Water Supply Management: A Case of Legaspi City and Its Water Supply.
MLA-viite (9. p.)Ballesfin, Elpha R. Environmental Aspects of Water Supply Management: A Case of Legaspi City and Its Water Supply.
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