Nebraska Symposium on Motivation, Hansen, D. J., & Widom, C. S. (2000). Motivation and child maltreatment. University of Nebraska Press.
Lua i Stíl Chicago (17ú heag.)Nebraska Symposium on Motivation, David J. Hansen, agus Cathy Spatz Widom. Motivation and Child Maltreatment. Lincoln: University of Nebraska Press, 2000.
Lua MLA (9ú heag.)Nebraska Symposium on Motivation, et al. Motivation and Child Maltreatment. University of Nebraska Press, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.