Roberts, P. (1912). Immigrant races in North America (Ed. 2.). The Young men's Christian association press.
Chicagoスタイル(17版)引用形式Roberts, Peter. Immigrant Races in North America. Ed. 2. New York: The Young men's Christian association press, 1912.
MLA(8版)引用形式Roberts, Peter. Immigrant Races in North America. Ed. 2. The Young men's Christian association press, 1912.
警告: この引用は必ずしも正確ではありません.