Dyfyniad APA

Montero, A., & Sandí, J. A. (2009). Water Pollution by the Coffee Milling Process in Costa Rica between 1840 and 1910.

Dyfyniad Arddull Chicago

Montero, Andrea, y José Aurelio Sandí. Water Pollution By the Coffee Milling Process in Costa Rica between 1840 and 1910. 2009.

Dyfyniad MLA

Montero, Andrea, y José Aurelio Sandí. Water Pollution By the Coffee Milling Process in Costa Rica between 1840 and 1910. 2009.

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