Mark Staves & Randy Wayne (December 3, 2009). "A. Carl Leopold". Lansing Star. Archived from the original on July 26, 2020. Retrieved December 3, 2009.
Mark Staves & Randy Wayne (December 3, 2009). "A. Carl Leopold". Lansing Star. Archived from the original on July 26, 2020. Retrieved December 3, 2009.