Firkins, O. W., & Firkins, I. T. E. (1934). Memoirs and letters of Oscar W. Firkins. University of Minnesota Press.
Chicagoスタイル(17版)引用形式Firkins, Oscar W., , Ina Ten Eyck Firkins. Memoirs and Letters of Oscar W. Firkins. Minneapolis: University of Minnesota Press, 1934.
MLA(8版)引用形式Firkins, Oscar W., , Ina Ten Eyck Firkins. Memoirs and Letters of Oscar W. Firkins. University of Minnesota Press, 1934.
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