Παραπομπή σε μορφή APA (7η εκδ.)

Pinpin, L. C. (1999). Indigenous environmental practices in Cordillera: An approach to environmental education.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Pinpin, Lilibeth C. Indigenous Environmental Practices in Cordillera: An Approach to Environmental Education. 1999.

Παραπομπή σε μορφή MLA (9th εκδ.)

Pinpin, Lilibeth C. Indigenous Environmental Practices in Cordillera: An Approach to Environmental Education. 1999.