TY  - BOOK
AU  - Gourlay,H.R
TI  - Useful graphs and charts: being an explanation of the principles of business graphics and an outline of the nature, construction and interpretation of graphs and charts as an aid to business management 
U1  - 650.0212 23
PY  - 1939///
CY  - Sydney
PB  - Rydge's Business Journal
KW  - Business
KW  - Graphic methods
N1  - Includes index
ER  -