Thomson, A. H. (1969). The Feldman method: The words and working philosophy of the world's greatest insurance salesman. Farnsworth Pub. Co.
Chicago (17e ed.) BronvermeldingThomson, Andrew H. The Feldman Method: The Words and Working Philosophy of the World's Greatest Insurance Salesman. Lynbrook, N.Y: Farnsworth Pub. Co, 1969.
MLA (9e ed.) BronvermeldingThomson, Andrew H. The Feldman Method: The Words and Working Philosophy of the World's Greatest Insurance Salesman. Farnsworth Pub. Co, 1969.
Let op: Deze citaties zijn niet altijd 100% accuraat.