TY  - BOOK
AU  - Khanna,V K.
TI  - Lattices and Boolean Algebras: First concepts 
SN  - 0706994361
U1  - 511.33 22
PY  - 1994///
CY  - New Delhi
PB  - Vikas
KW  - Lattice theory
N1  - Includes index
ER  -