Dyfyniad APA

Andrew Porteous. (2000). Dictionary of Environmental science and technology (3.). John Wiley and Sons.

Dyfyniad Arddull Chicago

Andrew Porteous. Dictionary of Environmental Science and Technology. 3. John Wiley and Sons, 2000.

Dyfyniad MLA

Andrew Porteous. Dictionary of Environmental Science and Technology. 3. John Wiley and Sons, 2000.

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