APA
Corey G., Corey M. S. j. a. & Callanan P. j. a. (1987). Issues and ethics in helping professions. Pacific Grove: Brooks/Cole.
Chicago
Corey Gerald, Corey Marianne S jt author and Callanan Patrick jt author. 1987. Issues and ethics in helping professions. Pacific Grove: Brooks/Cole.
Harvard
Corey G., Corey M. S. j. a. and Callanan P. j. a. (1987). Issues and ethics in helping professions. Pacific Grove: Brooks/Cole.
MLA
Corey Gerald, Corey Marianne S jt author and Callanan Patrick jt author. Issues and ethics in helping professions. Pacific Grove: Brooks/Cole. 1987.