Gaya APA
Bittel, Lester R.. (1981).
Developing your managing skills .
America:
Alexander Hamilton Institute, Inc..
Gaya Chicago
Bittel, Lester R..
Developing your managing skills.
America:
Alexander Hamilton Institute, Inc.,
1981.
Text.
Gaya MLA
Bittel, Lester R..
Developing your managing skills.
America:
Alexander Hamilton Institute, Inc.,
1981.
Text.
Gaya Turabian
Bittel, Lester R..
Developing your managing skills.
America:
Alexander Hamilton Institute, Inc.,
1981.
Print.