Sowers, J. I. (1925). The boy and his vocation. The Manual arts press.
Chicagoスタイル(17版)引用形式Sowers, John Irving. The Boy and His Vocation. Peoria, Ill.: The Manual arts press, 1925.
MLA(8版)引用形式Sowers, John Irving. The Boy and His Vocation. The Manual arts press, 1925.
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