APA aipamena

Barrantes-Sotela, O., & Sandoval-Murillo, L. (2016). LAND COVER/USE IN THE CANTONS OF UPALA, GUATUSO AND LOS CHILES IN THE YEAR 2011.

Chicago Style aipamena

Barrantes-Sotela, Omar, y Luis Sandoval-Murillo. LAND COVER/USE IN THE CANTONS OF UPALA, GUATUSO AND LOS CHILES IN THE YEAR 2011. 2016.

MLA aipamena

Barrantes-Sotela, Omar, y Luis Sandoval-Murillo. LAND COVER/USE IN THE CANTONS OF UPALA, GUATUSO AND LOS CHILES IN THE YEAR 2011. 2016.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.