Gaya APA
Jones, R, L., Trentin, H, G. (1968).
Management controls for profesional firms .
New York:
Amerikan Management assosiation.
Gaya MLA
Jones, Reginald, L.., Trentin, H., George.
"Management controls for profesional firms".
New York:
Amerikan Management assosiation,
1968.
Text.