00293nam a2200109Ia 4500008004100000020001800041100002000059245005500079250001100134260001900145300001900164180205s9999    xx            000 0 und d  a9780240806907  aReese, David E.  aRadio production work text :bstudio and equipment  a5th ed  aUSAbUSAc1977  avii, 239 pages