Cita APA (7a ed.)
Pollution Prevention and Abatement Handbook 1998: Toward Cleaner Production. Banco Mundial.
Cita estilo Chicago (17a ed.)
Pollution Prevention and Abatement Handbook 1998: Toward Cleaner Production. Washington, EUA: Banco Mundial.
Cita MLA (9a ed.)
Pollution Prevention and Abatement Handbook 1998: Toward Cleaner Production. Banco Mundial.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.