TY  - BOOK
AU  - Wigander K
AU  -  Schoug L
AU  -  Svensson A
TI  - Structured analysis and design of information
U1  - D65,8(B):4, M4 
PY  - 1984///
CY  - New York    
PB  -  McGraw-Hill        
KW  - structure analysis
ER  -