Imperio, E. G. (1995). Sustainable alternative livelihood handbook: A compendium of technologies. Foundation for Sustainable Development and the Environmental Center of the Philippines Foundation.
Chicago-Zitierstil (17. Ausg.)Imperio, Edgard G. Sustainable Alternative Livelihood Handbook: A Compendium of Technologies. Quezon City: Foundation for Sustainable Development and the Environmental Center of the Philippines Foundation, 1995.
MLA-Zitierstil (9. Ausg.)Imperio, Edgard G. Sustainable Alternative Livelihood Handbook: A Compendium of Technologies. Foundation for Sustainable Development and the Environmental Center of the Philippines Foundation, 1995.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.