APA(7版)引用形式

Lewis, C. (1952). Mere christianity. Collier Books.

Chicagoスタイル(17版)引用形式

Lewis, C.S. Mere Christianity. New York: Collier Books, 1952.

MLA(9版)引用形式

Lewis, C.S. Mere Christianity. Collier Books, 1952.