University of the Philippines Diliman. National Institutes for Science and Mathematics Education Development, Agad, M. L., Mondigo, L., & Gamboa, R. N. (2012). Gaano kaligtas ang ating tubig? DZUP.
Chicago Style (17th ed.) CitationUniversity of the Philippines Diliman. National Institutes for Science and Mathematics Education Development, Ma. Lourdes Agad, Lolita Mondigo, and Rodora N. Gamboa. Gaano Kaligtas Ang Ating Tubig? Quezon City: DZUP, 2012.
MLA (9th ed.) CitationUniversity of the Philippines Diliman. National Institutes for Science and Mathematics Education Development, et al. Gaano Kaligtas Ang Ating Tubig? DZUP, 2012.
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