TY  - BOOK
AU  - Lawvere F W
AU  -  Maurer C
TI  - Model theory and topoi
T2  - Lecture notes in mathematics; 445
U1  - Bz7, L5 
PY  - 1975///
CY  - Berlin
PB  - Springer Verlag        
KW  -  Mathematics essays
KW  - Mathematics
ER  -