De los Angeles, M. S. (1979). Indicators for evaluating the progress and impact of agro-forestry projects. Philippine Center for Economic Development.
Chicago-Zitierstil (17. Ausg.)De los Angeles, Marian Segura. Indicators for Evaluating the Progress and Impact of Agro-forestry Projects. Quezon City: Philippine Center for Economic Development, 1979.
MLA-Zitierstil (9. Ausg.)De los Angeles, Marian Segura. Indicators for Evaluating the Progress and Impact of Agro-forestry Projects. Philippine Center for Economic Development, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.