Dyfyniad APA

Ricketts Taylor Howard, Daily Gretchen Cara, Ehrlich Paul Ralph, Michener Charles Duncan, & National Academy of Sciences. Economic value of tropical forest to coffee production.

Dyfyniad Arddull Chicago

Ricketts Taylor Howard, Daily Gretchen Cara, Ehrlich Paul Ralph, Michener Charles Duncan, and National Academy of Sciences. Economic Value of Tropical Forest to Coffee Production.

Dyfyniad MLA

Ricketts Taylor Howard, et al. Economic Value of Tropical Forest to Coffee Production.

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