Emmanuel, J. A., Leonen, M. F., & Ganapin, D. J. (1992). Philippine and American environmental legislation and jurisprudence: A comparative perspective. UP Law Center, Institute of International Legal Studies.
Chicago-viite (17. p.)Emmanuel, Jorge A., Marvic F. Leonen, ja Delfin J. Ganapin. Philippine and American Environmental Legislation and Jurisprudence: A Comparative Perspective. Diliman, Q.C: UP Law Center, Institute of International Legal Studies, 1992.
MLA-viite (9. p.)Emmanuel, Jorge A., et al. Philippine and American Environmental Legislation and Jurisprudence: A Comparative Perspective. UP Law Center, Institute of International Legal Studies, 1992.
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