APA

Whittal M. L., Robichaud M., Thordarson D. S. & McLean P. D. (20090508). Group and individual treatment of obsessive-compulsive disorder using cognitive therapy and exposure plus response prevention: a 2-year follow-up of two randomized trials. : Journal of consulting and clinical psychology.

Chicago

Whittal Maureen L, Robichaud Melisa, Thordarson Dana S and McLean Peter D. 20090508. Group and individual treatment of obsessive-compulsive disorder using cognitive therapy and exposure plus response prevention: a 2-year follow-up of two randomized trials. : Journal of consulting and clinical psychology.

Harvard

Whittal M. L., Robichaud M., Thordarson D. S. and McLean P. D. (20090508). Group and individual treatment of obsessive-compulsive disorder using cognitive therapy and exposure plus response prevention: a 2-year follow-up of two randomized trials. : Journal of consulting and clinical psychology.

MLA

Whittal Maureen L, Robichaud Melisa, Thordarson Dana S and McLean Peter D. Group and individual treatment of obsessive-compulsive disorder using cognitive therapy and exposure plus response prevention: a 2-year follow-up of two randomized trials. : Journal of consulting and clinical psychology. 20090508.