00294nam a2200109Ia 450000500170000000800410001708200150005810000170007324500360009026000500012630000080017620260225051029.0260224s9999||||xx |||||||||||||| ||und||  a621.34 MAR  aJohn Markus  0aTelevision and radio repairing   aSingapore: McGraw-Hill Inter. Book Co. c1961  a568