Williams, C., Wilson, P., Morrison, J., McMahon, A., Andrew, W., Allan, L., . . . Tansey, L. (2013). Guided Self-Help Cognitive Behavioural Therapy for Depression in Primary Care: A Randomised Controlled Trial. Public Library of Science.

Williams, Christopher, Philip Wilson, Jill Morrison, Alex McMahon, Walker Andrew, Lesley Allan, Alex McConnachie, Yvonne McNeill, e Louise Tansey. Guided Self-Help Cognitive Behavioural Therapy for Depression in Primary Care: A Randomised Controlled Trial. Public Library of Science, 2013.

Williams, Christopher, et al. Guided Self-Help Cognitive Behavioural Therapy for Depression in Primary Care: A Randomised Controlled Trial. Public Library of Science, 2013.