Solberg, D. P. (1975). "Especially difficult" boys: A descriptive survey and discussion. Aycliffe School.
Chicago-Zitierstil (17. Ausg.)Solberg, David P. "Especially Difficult" Boys: A Descriptive Survey and Discussion. Newton Aycliffe, Darlington: Aycliffe School, 1975.
MLA-Zitierstil (8. Ausg.)Solberg, David P. "Especially Difficult" Boys: A Descriptive Survey and Discussion. Aycliffe School, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.