TY  - BOOK
AU  - Hille Reinhold Freidrich
TI  - Data abstractin and program development: Using modula-2
T2  - Prentice Hall advances in computer science series
U1  - D65,8(B)92M-2, M9 
PY  - 1989///
CY  - New York    
PB  -  Prentice Hall       
KW  - Computer science
ER  -