Hadley, N. H. (1984). Fingernail Biting, Theory, Research and Treatment. ##article.authors## Dr. R. Justin Mahoney ##submission.downloads## PDF (English) ##issue.issue## ##issue.vol## 21 ##issue.no## 4 (1987) ##section.section## Book Reviews/ Comptes rendus ##submission.license## Copyright is retained by the Canadian Journal of Counselling and Psychotherapy.