Παραπομπή σε μορφή APA (7η εκδ.)

Philippines. Department of Environment and Natural Resources. Upland Development Program. (1989). Implementation manual for participatory ISF projects. Upland Development Program, Department of Environment and Natural Resources.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Philippines. Department of Environment and Natural Resources. Upland Development Program. Implementation Manual for Participatory ISF Projects. Quezon City: Upland Development Program, Department of Environment and Natural Resources, 1989.

Παραπομπή σε μορφή MLA (9th εκδ.)

Philippines. Department of Environment and Natural Resources. Upland Development Program. Implementation Manual for Participatory ISF Projects. Upland Development Program, Department of Environment and Natural Resources, 1989.