Gaya APA
Heller, Robert. (1986).
The pocket manager .
Great Britain:
Coronet Books.
Gaya Chicago
Heller, Robert.
The pocket manager.
Great Britain:
Coronet Books,
1986.
Text.
Gaya MLA
Heller, Robert.
The pocket manager.
Great Britain:
Coronet Books,
1986.
Text.
Gaya Turabian
Heller, Robert.
The pocket manager.
Great Britain:
Coronet Books,
1986.
Print.