APA (7e ed.) Bronvermelding

Bradley T. Erford, S. H. E. Thirty-Five Techniques Every Counselor Should Know (1.). Pearson India.

Chicago (17e ed.) Bronvermelding

Bradley T. Erford, Susan H. Eaves. Thirty-Five Techniques Every Counselor Should Know. 1. Pearson India.

MLA (8e ed.) Bronvermelding

Bradley T. Erford, Susan H. Eaves. Thirty-Five Techniques Every Counselor Should Know. 1. Pearson India.