Dyfyniad APA

(1996). Life cycle environmental impact analysis for forest products. Forest Products Society.

Dyfyniad Arddull Chicago

Life Cycle Environmental Impact Analysis for Forest Products. Madison: Forest Products Society, 1996.

Dyfyniad MLA

Life Cycle Environmental Impact Analysis for Forest Products. Forest Products Society, 1996.

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