Dyfyniad APA

Central Statistical Organisation. (2001). Compendium of environmental statistics 2001. Central Statistical Organisation.

Dyfyniad Arddull Chicago

Central Statistical Organisation. Compendium of Environmental Statistics 2001. New Delhi: Central Statistical Organisation, 2001.

Dyfyniad MLA

Central Statistical Organisation. Compendium of Environmental Statistics 2001. Central Statistical Organisation, 2001.

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