Pinpin, L. C. (1999). Indigenous environmental practices in Cordillera: An approach to environmental education.
Citace podle Chicago (17th ed.)Pinpin, Lilibeth C. Indigenous Environmental Practices in Cordillera: An Approach to Environmental Education. 1999.
Citace podle MLA (9th ed.)Pinpin, Lilibeth C. Indigenous Environmental Practices in Cordillera: An Approach to Environmental Education. 1999.
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