TY  - BOOK
AU  - Donovan A Johnson
TI  - Logic and reasoning in mathematics
T2  - Exploring mathematics on your own
U1  - 511.3 J67l 
PY  - 1963///
CY  - U.S.A
PB  - St. Louis, Webster Pub. Co., 
KW  -  Mathematics
KW  - Juvenile literature. Logic
ER  -