Gaya APA
Preston,Paul. (1978).
Management for Supervisors .
London:
Prentice-Hall.
Gaya Chicago
Preston,Paul.
Management for Supervisors.
London:
Prentice-Hall,
1978.
Text.
Gaya MLA
Preston,Paul.
Management for Supervisors.
London:
Prentice-Hall,
1978.
Text.
Gaya Turabian
Preston,Paul.
Management for Supervisors.
London:
Prentice-Hall,
1978.
Print.