Dyfyniad APA

Rojas, V., Barahona, D., & Alvarado, G. E. (2017). Geomorphology and petrography of Ángeles lava flow and the cinder cone Monte de la Cruz, Barva volcano, Costa Rica.

Dyfyniad Arddull Chicago

Rojas, Vanessa, Dione Barahona, y Guillermo E. Alvarado. Geomorphology and Petrography of Ángeles Lava Flow and the Cinder Cone Monte De La Cruz, Barva Volcano, Costa Rica. 2017.

Dyfyniad MLA

Rojas, Vanessa, Dione Barahona, y Guillermo E. Alvarado. Geomorphology and Petrography of Ángeles Lava Flow and the Cinder Cone Monte De La Cruz, Barva Volcano, Costa Rica. 2017.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.