AU  - SCHAGRIN,MORTON
TI  - LANGUAGE OF LOGIC: A PROGRAMED TEXT
U1  - 160/SCH 
PY  - 1968///
CY  - NEW YORK
PB  - RANDOM HOUSE
KW  - LOGIC
KW  - REASONING
KW  - PHILOSOPHY
N1  - NO ISBN. AN OLD BOOK.
ER  -