Gaya APA

Mcgrath, P, J., FINLEY, G. (1999). Chronic and Recurrent Pain in Children and Adolescents Vo. 13 . Seattle: IASP Press.

Gaya MLA

Mcgrath, Patrick, J.., FINLEY, G.Allen. "Chronic and Recurrent Pain in Children and Adolescents Vo. 13". Seattle: IASP Press, 1999. Text.