Gaya APA
Heyel, Carl. (1968).
The Encyclopedia of management Carl Heyel .
New York:
Reinhold Book.
Gaya Chicago
Heyel, Carl.
The Encyclopedia of management Carl Heyel.
New York:
Reinhold Book,
1968.
Text.
Gaya MLA
Heyel, Carl.
The Encyclopedia of management Carl Heyel.
New York:
Reinhold Book,
1968.
Text.
Gaya Turabian
Heyel, Carl.
The Encyclopedia of management Carl Heyel.
New York:
Reinhold Book,
1968.
Print.