The ARRL advanced class license manual for the radio amateurLarry D. Wolfgang, Bruce S. Hale, Mark J. Wilson, C. L. Hutchinson · First published 1990Open the Tome
The ARRL 1988-1991 extra class license manual for the radio amateurLarry D. Wolfgang, Bruce S. Hale, Mark J. Wilson · First published 1989Open the Tome
The ARRL 1987-1988 technician/general class license manual for the radio amateurLarry D. Wolfgang, Bruce S. Hale · First published 1988Open the Tome
tune in the World with Ham RadioWolfgang, Larry; Wilson, Mark J.; Hale, Bruce S. (Editors) · First published 1987Open the Tome