Sigmarsdóttir, M., DeGarmo, D. S., Forgatch, M. S., & Guðmundsdóttir, E. V. (2013). Treatment effectiveness of PMTO for children's behavior problems in Iceland: Assessing parenting practices in a randomized controlled trial. Scand J Psychol.
Čikaški stil citiranjaSigmarsdóttir, Margrét, David S. DeGarmo, Marion S. Forgatch, i Edda Vikar Guðmundsdóttir. "Treatment Effectiveness of PMTO for Children's Behavior Problems in Iceland: Assessing Parenting Practices in a Randomized Controlled Trial." Scand J Psychol 2013.
MLA način citiranjaSigmarsdóttir, Margrét, David S. DeGarmo, Marion S. Forgatch, i Edda Vikar Guðmundsdóttir. "Treatment Effectiveness of PMTO for Children's Behavior Problems in Iceland: Assessing Parenting Practices in a Randomized Controlled Trial." Scand J Psychol 2013.