TY  - BOOK
AU  - Claffey, William J.
TI  - PRINCIPLES OF PROGRAMMING THE IBM, 1620 COMPUTER
U1  - 651.82 
PY  - 1968///
CY  - Belmont, Calif.
PB  - Dickenson Pub.
KW  - Ibm 1620 (Computer) -- Programming
N1  - Bibliography : P. 310
ER  -