(1919). Causes of delinquency among fifty negro boys / by Homer K. Watson, A. B.
Chicagoスタイル(17版)引用形式Causes of Delinquency Among Fifty Negro Boys / by Homer K. Watson, A. B. 1919.
MLA(9版)引用形式Causes of Delinquency Among Fifty Negro Boys / by Homer K. Watson, A. B. 1919.
警告: この引用は必ずしも正確ではありません.