TY  - BOOK
AU  - Henry,Gary T.
TI  - Graphing data: Techniques for display and analysis 
SN  - 0-8039-5674-6
PY  - 1995///
CY  - London, New Delhi, Thousand Oaks, CA
PB  - International Educational & Professional Publ., Sage publ.
KW  - Graphic methods
KW  - Վիճակագրություն
N1  - Grant OSIAFAB 2000
N2  - Includes bibliographical references and index
ER  -