APA aipamena

Magtibay, B. B. (1999). Policies and guidelines on water supply systems. Biosphere Environmental Health Systems Consultancy Services.

Chicago Style aipamena

Magtibay, Bonifacio B. Policies and Guidelines on Water Supply Systems. Imus, Cavite: Biosphere Environmental Health Systems Consultancy Services, 1999.

MLA aipamena

Magtibay, Bonifacio B. Policies and Guidelines on Water Supply Systems. Biosphere Environmental Health Systems Consultancy Services, 1999.