APA Style
HELLRIGEL, Den. (1989).
Management (2nd ed).
:
Addison Wesley.
Chicago Style
HELLRIGEL, Den.
Management.
2nd ed
:
Addison Wesley,
1989.
Text.
MLA Style
HELLRIGEL, Den.
Management.
2nd ed
:
Addison Wesley,
1989.
Text.
Turabian Style
HELLRIGEL, Den.
Management.
2nd ed
:
Addison Wesley,
1989.
Print.