Dyfyniad APA

Guzmán-Arias, I., & Calvo-Alvarado, J. C. (2012). Water resources of the Upper Tempisque River Watershed, Costa Rica (Technical note).

Dyfyniad Arddull Chicago

Guzmán-Arias, Isabel, y Julio César Calvo-Alvarado. Water Resources of the Upper Tempisque River Watershed, Costa Rica (Technical Note). 2012.

Dyfyniad MLA

Guzmán-Arias, Isabel, y Julio César Calvo-Alvarado. Water Resources of the Upper Tempisque River Watershed, Costa Rica (Technical Note). 2012.

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