La Viña, A. G. (2012). Philippine law and ecology. University of the Philippines, College of Law.
Citazione stile Chigago Style (17a edizione)La Viña, Antonio G.M. Philippine Law and Ecology. Quezon City: University of the Philippines, College of Law, 2012.
Citatione MLA (9a ed.)La Viña, Antonio G.M. Philippine Law and Ecology. University of the Philippines, College of Law, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.