Dyfyniad APA
Longhurst, J. W. S. (1989). Acid deposition: Sources, effects, and controls. British Library : Technical Communications.
Dyfyniad Arddull Chicago
Longhurst, James W. S. Acid Deposition: Sources, Effects, and Controls. [London]: British Library : Technical Communications, 1989.
Dyfyniad MLA
Longhurst, James W. S. Acid Deposition: Sources, Effects, and Controls. British Library : Technical Communications, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.