Gaya APA
Heckel, Robert V., Salzbery, H.C.. (1976).
Group psychotherapy : a behavioral approach .
California:
Universitas of South.
Gaya Chicago
Heckel, Robert V., Salzbery, H.C..
Group psychotherapy : a behavioral approach.
California:
Universitas of South,
1976.
Text.
Gaya MLA
Heckel, Robert V., Salzbery, H.C..
Group psychotherapy : a behavioral approach.
California:
Universitas of South,
1976.
Text.
Gaya Turabian
Heckel, Robert V., Salzbery, H.C..
Group psychotherapy : a behavioral approach.
California:
Universitas of South,
1976.
Print.