Pinpin, L. C. (1999). Indigenous environmental practices in Cordillera: An approach to environmental education.
Citazione stile Chigago Style (17a edizione)Pinpin, Lilibeth C. Indigenous Environmental Practices in Cordillera: An Approach to Environmental Education. 1999.
Citatione MLA (9a ed.)Pinpin, Lilibeth C. Indigenous Environmental Practices in Cordillera: An Approach to Environmental Education. 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.