Winter, A. R. (1949). Why not make a retreat? Mayfield Pamphlet Service.
Chicagoスタイル(17版)引用形式Winter, A. R. Why Not Make a Retreat? [Place of publication not identified]: Mayfield Pamphlet Service, 1949.
MLA(8版)引用形式Winter, A. R. Why Not Make a Retreat? Mayfield Pamphlet Service, 1949.
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