MDRT. (1999). MILLION DOLLAR CLOSING TECHNIQUES. JOHN WILEY AND SONS.
Dyfyniad Arddull ChicagoMDRT. MILLION DOLLAR CLOSING TECHNIQUES. NEW YORK: JOHN WILEY AND SONS, 1999.
Dyfyniad MLAMDRT. MILLION DOLLAR CLOSING TECHNIQUES. JOHN WILEY AND SONS, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.