Lecture-series on the Philippine Environment in the 21st Century U.P. College of Law & Emmanuel, J. A. (1993). Lecture-series on the Philippine environment in the 21st Century: Issues and concerns : papers and proceedings. Institute of International Legal Studies, University of the Philippines, Law Center.
Chicago-viite (17. p.)Lecture-series on the Philippine Environment in the 21st Century U.P. College of Law ja Jorge A. Emmanuel. Lecture-series on the Philippine Environment in the 21st Century: Issues and Concerns : Papers and Proceedings. Diliman, Quezon City: Institute of International Legal Studies, University of the Philippines, Law Center, 1993.
MLA-viite (9. p.)Lecture-series on the Philippine Environment in the 21st Century U.P. College of Law ja Jorge A. Emmanuel. Lecture-series on the Philippine Environment in the 21st Century: Issues and Concerns : Papers and Proceedings. Institute of International Legal Studies, University of the Philippines, Law Center, 1993.