De Jesus, J. P., & Sagun, C. A. (2014). Ang liwanag sa dagat (50th anniversary edition.). University of the Philippines National Institute for Science and Mathematics Education Development (UP NISMED).
Chicago Style (17th ed.) CitationDe Jesus, Jenny P., and Cesar A. Sagun. Ang Liwanag Sa Dagat. 50th anniversary edition. Quezon City: University of the Philippines National Institute for Science and Mathematics Education Development (UP NISMED), 2014.
MLA (9th ed.) CitationDe Jesus, Jenny P., and Cesar A. Sagun. Ang Liwanag Sa Dagat. 50th anniversary edition. University of the Philippines National Institute for Science and Mathematics Education Development (UP NISMED), 2014.
Warning: These citations may not always be 100% accurate.