APA-Zitierstil (7. Ausg.)

Firkins, O. W., & Firkins, I. T. E. (1934). Memoirs and letters of Oscar W. Firkins. University of Minnesota Press.

Chicago-Zitierstil (17. Ausg.)

Firkins, Oscar W., und Ina Ten Eyck Firkins. Memoirs and Letters of Oscar W. Firkins. Minneapolis: University of Minnesota Press, 1934.

MLA-Zitierstil (8. Ausg.)

Firkins, Oscar W., und Ina Ten Eyck Firkins. Memoirs and Letters of Oscar W. Firkins. University of Minnesota Press, 1934.