Dyfyniad APA

Ledezma, R. A., & Granados, R. (2008). Environmental Degradation and Coffee Growing in Tarrazú between 1970 and 2006.

Dyfyniad Arddull Chicago

Ledezma, Rafael A., y Roberto Granados. Environmental Degradation and Coffee Growing in Tarrazú between 1970 and 2006. 2008.

Dyfyniad MLA

Ledezma, Rafael A., y Roberto Granados. Environmental Degradation and Coffee Growing in Tarrazú between 1970 and 2006. 2008.

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