APA
Hales D. R., Christian K. W., . (2009). An invitation to personal change. Belmont, CA: Wadsworth.
Chicago
Hales Dianne R, Christian Kenneth W, . 2009. An invitation to personal change. Belmont, CA: Wadsworth.
Harvard
Hales D. R., Christian K. W., . (2009). An invitation to personal change. Belmont, CA: Wadsworth.
MLA
Hales Dianne R, Christian Kenneth W, . An invitation to personal change. Belmont, CA: Wadsworth. 2009.