Dyfyniad APA

Melgar Hernández, J. C., & Ocegueda, A. (2014). Xochiquetzal and Popoca: The legend of the volcanoes. FCAS : Cacciani, S.A. de C.V..

Dyfyniad Arddull Chicago

Melgar Hernández, Juan Carlos, and Aleida Ocegueda. Xochiquetzal and Popoca: The Legend of the Volcanoes. México, D. F.: FCAS : Cacciani, S.A. de C.V., 2014.

Dyfyniad MLA

Melgar Hernández, Juan Carlos, and Aleida Ocegueda. Xochiquetzal and Popoca: The Legend of the Volcanoes. FCAS : Cacciani, S.A. de C.V., 2014.

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