Gaya APA
Zelko, Harold. (1957).
Successful conference and discussion techniques .
New York:
McGraw-Hill.
Gaya Chicago
Zelko, Harold.
Successful conference and discussion techniques.
New York:
McGraw-Hill,
1957.
Text.
Gaya MLA
Zelko, Harold.
Successful conference and discussion techniques.
New York:
McGraw-Hill,
1957.
Text.
Gaya Turabian
Zelko, Harold.
Successful conference and discussion techniques.
New York:
McGraw-Hill,
1957.
Print.