Dyfyniad APA

(1997). Moving ahead with ISO 14000improving environmental management and advancing sustainable decelopment. John Wiley & Sons.

Dyfyniad Arddull Chicago

Moving Ahead with ISO 14000improving Environmental Management and Advancing Sustainable Decelopment. John Wiley & Sons, 1997.

Dyfyniad MLA

Moving Ahead with ISO 14000improving Environmental Management and Advancing Sustainable Decelopment. John Wiley & Sons, 1997.

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