Robert Lawrence Martensen (January 1, 1947, Lake County, Ohio – September 26, 2013, Pasadena, California) was an American physician, historian, and author.
Robert Lawrence Martensen (January 1, 1947, Lake County, Ohio – September 26, 2013, Pasadena, California) was an American physician, historian, and author. (en)
Robert Lawrence Martensen (January 1, 1947, Lake County, Ohio – September 26, 2013, Pasadena, California) was an American physician, historian, and author. (en)