Gaya APA
Ludlow, Ron. (1992).
The essence of effective communication .
New York:
Prentice-Hall.
Gaya Chicago
Ludlow, Ron.
The essence of effective communication.
New York:
Prentice-Hall,
1992.
.
Gaya MLA
Ludlow, Ron.
The essence of effective communication.
New York:
Prentice-Hall,
1992.
.
Gaya Turabian
Ludlow, Ron.
The essence of effective communication.
New York:
Prentice-Hall,
1992.
.