Gordon, Thomas, 1918- Leader effectiveness training, L.E.T. : the no-lose way to release the productive potential of people / Thomas Gordon. - 1st ed. - [New York] : Wyden Books, c1977. - vi, 278 p. ; 22 cm. Includes index. ISBN: 0671229605 0553341383 Subjects--Topical Terms: Leadership.Executive ability.Organizational behavior. LC Class. No.: BF637.L4 / G63 1977 Dewey Class. No.: 158/.4