Joyner, Mark The great formula: for creating maximum profit with minimal effort / Mark Joyner. - Hoboken, : John Wiley&Sons, c2006. - xii, 243 p. : ill. ; 23 cm. Includes index. ISBN: 0471778230(hbk.) Subjects--Topical Terms: Selling.Success in business. LC Class. No.: HF5438.25 / JOY