Cita APA (7th ed.)

Pinpin, L. C., & Rabago, L. M. (1999). Indigenous environmental practices in the Cordillera: An approach to environmental education. College of Education, University of the Philippines Diliman.

Cita Chicago (17th ed.)

Pinpin, Lilibeth C., i Lilia M. Rabago. Indigenous Environmental Practices in the Cordillera: An Approach to Environmental Education. Quezon City: College of Education, University of the Philippines Diliman, 1999.

Cita MLA (9th ed.)

Pinpin, Lilibeth C., i Lilia M. Rabago. Indigenous Environmental Practices in the Cordillera: An Approach to Environmental Education. College of Education, University of the Philippines Diliman, 1999.