Roffman, H. (2008). Christopher and the boys: Howard Roffman. Gmünder.
Chicagoスタイル(17版)引用形式Roffman, Howard. Christopher and the Boys: Howard Roffman. Berlin: Gmünder, 2008.
MLA(8版)引用形式Roffman, Howard. Christopher and the Boys: Howard Roffman. Gmünder, 2008.
警告: この引用は必ずしも正確ではありません.