Dyfyniad APA

Organisation for Economic Co-operation and Development. (1986). Environmental assessment and development assistance. OECD.

Dyfyniad Arddull Chicago

Organisation for Economic Co-operation and Development. Environmental Assessment and Development Assistance. Paris, France: OECD, 1986.

Dyfyniad MLA

Organisation for Economic Co-operation and Development. Environmental Assessment and Development Assistance. OECD, 1986.

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