Casper, L. 1. (1999). The circular firing squad. Giraffe Books.
Chicagoスタイル(17版)引用形式Casper, Leonard 1923. The Circular Firing Squad. Quezon City: Giraffe Books, 1999.
MLA(9版)引用形式Casper, Leonard 1923. The Circular Firing Squad. Giraffe Books, 1999.
警告: この引用は必ずしも正確ではありません.