TY  - BOOK
AU  - Rao, I.K.Ravichandra.
TI  - Quantitative Methods for Library and information Science / 
SN  - 0-85226-749-5
U1  - 2:(B) 
PY  - 1971///
CY  - New Delhi-110002 : 
PB  - Wiley Eastern Ltd. , 
KW  - Testing of hypothesis
ER  -