Hare, T. (1990). Acid rain. Gloucester Press, Aladdin Books, Franklin Watts.
Dyfyniad Arddull ChicagoHare, Tony. Acid Rain. London: Gloucester Press, Aladdin Books, Franklin Watts, 1990.
Dyfyniad MLAHare, Tony. Acid Rain. Gloucester Press, Aladdin Books, Franklin Watts, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.