Gaya APA
Putti, Joseph M.. (1986).
Understanding productivity .
Singapore:
Federal Publications.
Gaya Chicago
Putti, Joseph M..
Understanding productivity.
Singapore:
Federal Publications,
1986.
Text.
Gaya MLA
Putti, Joseph M..
Understanding productivity.
Singapore:
Federal Publications,
1986.
Text.
Gaya Turabian
Putti, Joseph M..
Understanding productivity.
Singapore:
Federal Publications,
1986.
Print.