Sajise, P. E. (1992). Saving the present for the future: The state of the environment. University of the Philippines Press.
Chicago-Zitierstil (17. Ausg.)Sajise, Percy E. Saving the Present for the Future: The State of the Environment. Quezon City: University of the Philippines Press, 1992.
MLA-Zitierstil (9. Ausg.)Sajise, Percy E. Saving the Present for the Future: The State of the Environment. University of the Philippines Press, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.