TY  - BOOK
AU  - Schumm, George F.
TI  - A Teaching companion to lemmon's beginning logic
SN  - 0-915144-65-4
U1  - 160/SCH/T 
KW  - Propositional Calculus|Predicate Calculus|Modern symbolic logic|Technique of proof-discovery
KW  - Study guide on beginning logic
N1  - 761; Study guide on beginning logic
ER  -