APA (7e ed.) Bronvermelding

De los Angeles, M. S. (1979). Indicators for evaluating the progress and impact of agro-forestry projects. Philippine Center for Economic Development.

Chicago (17e ed.) Bronvermelding

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 (9e ed.) Bronvermelding

De los Angeles, Marian Segura. Indicators for Evaluating the Progress and Impact of Agro-forestry Projects. Philippine Center for Economic Development, 1979.