Gaya APA
KOONTZ,Harold, . (1976).
Management A Systems and Contingency Analysis of Managerial Functions .
Amerika Serikat:
McGraw-Hill Kogakusha,LTD.
Gaya MLA
KOONTZ,Harold, .
"Management A Systems and Contingency Analysis of Managerial Functions".
Amerika Serikat:
McGraw-Hill Kogakusha,LTD,
1976.
Text.