Barbara Sobel, the daughter of author Robert Sobel, began her promotion company in 2010, promoting music to radio stations, DJs, Record pools and record labels for radio airplay.
Sobel, Robert The Entrepreneurs: Explorations Within the American Business Tradition (Weybright & Talley 1974), chapter 8, Donald Douglas: The Fortunes of War ISBN 0-679-40064-8.
Robert Sobel The Entrepreneurs: Explorations Within the American Business Tradition
Robert Sobel and John Raimo, Biographical Directory of the Governors of the U.S. (1978)
Sobel, Robert, The Entrepreneurs: Explorations Within the American Business Tradition (Weybright & Talley 1974), chapter 6, Theodore Vail: The Subtle Serendipidist ISBN 0-679-40064-8.
Robert Louis Stevenson | Robert De Niro | Robert E. Lee | Robert Mugabe | Robert Redford | Robert Burns | Robert Bosch GmbH | Robert | Robert A. Heinlein | Robert Schumann | Robert Browning | Robert Rauschenberg | Robert Plant | Robert Altman | Robert Mitchum | Robert Frost | Robert Southey | Robert F. Kennedy | Robert Maxwell | Robert Graves | Robert E. Howard | Robert Fripp | Robert Fisk | Robert Rodriguez | Robert Motherwell | Robert Lowell | Robert Johnson | Robert Duvall | Robert Boyle | Robert Walpole |