TY  - BOOK
AU  - Marshall,Robert
AU  - Marshall,Mary Blair
TI  - Tape recorder service manual and trouble-shooting workbook
T2  - Modern camera guide series
U1  - 621.381 
PY  - 1962///
CY  - Philadelphia
PB  - Chilton Co., Book Division
KW  - Magnetic recorders and recording
ER  -