George, Claude S. Supervision in action: the art of managing others/ Claude S. George, Don Collins, Bruce Gill consulting editor, Joseph L. Massie. - Sydney: Prentice-Hall of Australia, 1979 - 318 pages: illustrations; 24cm. Originally published: Reston, Va. : Reston, 1976. ISBN: 0724811788 Subjects--Topical Terms: Supervision of employees.Personnel management.