Thomson, A. H. (1969). The Feldman method: The words and working philosophy of the world's greatest insurance salesman. Farnsworth Pub. Co.
Citace podle Chicago (17th ed.)Thomson, Andrew H. The Feldman Method: The Words and Working Philosophy of the World's Greatest Insurance Salesman. Lynbrook, N.Y: Farnsworth Pub. Co, 1969.
Citace podle MLA (9th ed.)Thomson, Andrew H. The Feldman Method: The Words and Working Philosophy of the World's Greatest Insurance Salesman. Farnsworth Pub. Co, 1969.
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