Gaya APA
Osten, K, A., Switzer, R. (2014).
Integrating 12-steps and psychotherapy: helping clients find sobriety and recovery .
Los Angeles:
.
Gaya MLA
Osten, Kevin, A.., Switzer, Robert.
"Integrating 12-steps and psychotherapy: helping clients find sobriety and recovery".
Los Angeles:
,
2014.
Buku.