Gaya APA
Corey, Gerald. (1982).
Group techniques .
Monterey:
Brooks/Cole.
Gaya Chicago
Corey, Gerald.
Group techniques.
Monterey:
Brooks/Cole,
1982.
Text.
Gaya MLA
Corey, Gerald.
Group techniques.
Monterey:
Brooks/Cole,
1982.
Text.
Gaya Turabian
Corey, Gerald.
Group techniques.
Monterey:
Brooks/Cole,
1982.
Print.