Dyfyniad APA

Boer, H. d. (1998). Coffee cultivation in the watershed of the river Aranjuez.

Dyfyniad Arddull Chicago

Boer, H. den. Coffee Cultivation in the Watershed of the River Aranjuez. 1998.

Dyfyniad MLA

Boer, H. den. Coffee Cultivation in the Watershed of the River Aranjuez. 1998.

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