Wenzlaff, T. c. (1974). Pioneers on Two Continents: The Ochsner-Griess History and Genealogy (1. Auflage.). Service Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWenzlaff, Theodore c. Pioneers on Two Continents: The Ochsner-Griess History and Genealogy. 1. Auflage. Henderson, Nebraska: Service Press, 1974.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWenzlaff, Theodore c. Pioneers on Two Continents: The Ochsner-Griess History and Genealogy. 1. Auflage. Service Press, 1974.
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