TY  - BOOK
AU  - Spear ,Mary Eleanor 
TI  - Practical charting Techniques 
U1  - 001.4226 
PY  - 1969///
CY  - New york: 
PB  - McGraw-Hill, 
KW  - City Wage Earners
KW  - Computer Science
KW  - Domestic exports
KW  - World Wars
ER  -