TY  - BOOK
AU  - Imperato, Michael
TI  - An Introduction to Z 
SN  - 0862382890
U1  - 005.1 
PY  - 1991///
CY  - Bromley, Kent : 
PB  - Chartwell-Bratt, 
KW  - Z Computer Program Language
N1  - NY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-86238-289-0.pdf
ER  -