TY  - BOOK
AU  - Arkin,Herbert
AU  - Colton,Raymond Roosevelt
TI  - Graphs: how to make and use them
AV  - QA90 .A7 1940
U1  - 510.84 
PY  - 1940///]
CY  - New York, London
PB  - Harper & brothers
KW  - Graphic methods
KW  - Local
ER  -