Ulvestad, M., Kringhaug, O., Raneng, D. O., Huntrods, B. K., Bakke, M. N., & Gourley, D. N. (2010). Norwegians in America, their history and record: A translated version of the 1907 and 1913 Nordmændene i Amerika, deres historie og rekord. Waukon, Iowa: Astri My Astri Pub..

Ulvestad, Martin, Olaf Kringhaug, Dybvad Odd-Steinar Raneng, Benjamin Keith Huntrods, Margit Nysetvold Bakke, and Deb Nelson Gourley. Norwegians in America, Their History and Record: A Translated Version of the 1907 and 1913 Nordmændene I Amerika, Deres Historie Og Rekord. Waukon, Iowa: Astri My Astri Pub., 2010.

Ulvestad, Martin, et al. Norwegians in America, Their History and Record: A Translated Version of the 1907 and 1913 Nordmændene I Amerika, Deres Historie Og Rekord. Waukon, Iowa: Astri My Astri Pub., 2010.