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BITTEL L.R, . (1990). WHAT EVERY SUPERVISOR SHOULD KNOW. NEW YORK: MCGRAW-HILL PUBLISHING CO.
BITTEL L.R, . 1990. WHAT EVERY SUPERVISOR SHOULD KNOW. NEW YORK: MCGRAW-HILL PUBLISHING CO.
BITTEL L.R, . WHAT EVERY SUPERVISOR SHOULD KNOW. NEW YORK: MCGRAW-HILL PUBLISHING CO. 1990.
TextOriginal language: Publication details: NEW YORK MCGRAW-HILL PUBLISHING CO. 1990Description: X+614ISBN: 
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