Dyfyniad APA

British Medical Association. (1999). Health & environmental impact assessment. British Medical Association.

Dyfyniad Arddull Chicago

British Medical Association. Health & Environmental Impact Assessment. London: British Medical Association, 1999.

Dyfyniad MLA

British Medical Association. Health & Environmental Impact Assessment. British Medical Association, 1999.

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