Haffert, J. M. (1943). Saturday in purgatory? Scapular Press.
Chicagoスタイル(17版)引用形式Haffert, John M. Saturday in Purgatory? New York, N.Y.: Scapular Press, 1943.
MLA(8版)引用形式Haffert, John M. Saturday in Purgatory? Scapular Press, 1943.
警告: この引用は必ずしも正確ではありません.