Gaya APA
RIGGS, J, L., KALBAUGH, A, J. (1974).
THE ART OF MANAGEMENT ptinciples and practices .
AMERIKA:
McGraw-Hill.
Gaya MLA
RIGGS, JAMES, L.., KALBAUGH, A., JAMES.
"THE ART OF MANAGEMENT ptinciples and practices".
AMERIKA:
McGraw-Hill,
1974.
Art Original.