TY  - BOOK
AU  - Fisk; Milton.
TI  - A Modern Formal Logic: Prentice-Hall Funtamentals of Logic Series
U1  - 160 FIS 
CY  - U S A
PB  - Prentice - Hall, Englewood Cliffs.
KW  - Mathematics; The Technique of proof, The Tabular Method
ER  -