Keating, R. K. (2014). Wheel man: Robert M. Keating, pioneer of bicycles, motorcycles and automobiles. McFarland & Company, Inc..
Lua i Stíl Chicago (17ú heag.)Keating, R. K. Wheel Man: Robert M. Keating, Pioneer of Bicycles, Motorcycles and Automobiles. Jefferson, North Carolina: McFarland & Company, Inc., 2014.
Lua MLA (9ú heag.)Keating, R. K. Wheel Man: Robert M. Keating, Pioneer of Bicycles, Motorcycles and Automobiles. McFarland & Company, Inc., 2014.
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