Certo, Samuel C. Supervision : concepts and skill building / Samuel C. Certo. - 3rd ed. - Boston, Mass. : McGraw-Hill/Irwin, 2000. - xxxv, 567 p. : ill. ; 26 cm. ISBN: 9780072284041 (pbk.) 0072284048 (pbk.) Subjects--Topical Terms: Supervision of employees. Dewey Class. No.: 658.302 / CER 2000