Dyfyniad APA

FAO. (1997). International standards for phytosanitary measures: Export certification systems. Rome, Italy: FAO.

Dyfyniad Arddull Chicago

FAO. International Standards for Phytosanitary Measures: Export Certification Systems. Rome, Italy: FAO, 1997.

Dyfyniad MLA

FAO. International Standards for Phytosanitary Measures: Export Certification Systems. Rome, Italy: FAO, 1997.

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