Dyfyniad APA

(2011). The Coffee Exporter's Guide (3rd.). International Trade Centre.

Dyfyniad Arddull Chicago

The Coffee Exporter's Guide. 3rd. Geneva: International Trade Centre, 2011.

Dyfyniad MLA

The Coffee Exporter's Guide. 3rd. International Trade Centre, 2011.

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