Redding, D. A. (1985). Before you call i will answer. Fleming H.
Dyfyniad Arddull ChicagoRedding, David A. Before You Call I Will Answer. New Jersey: Fleming H, 1985.
Dyfyniad MLARedding, David A. Before You Call I Will Answer. Fleming H, 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.