TY  - BOOK
AU  - Parkhi, Ragunath Shatanand
TI  - Evolution of a dynamic theory
T2  - (Sarada Ranganathan lectures, 4)
PY  - 1972///
CY  - Delhi
PB  - Vikas
KW  - Library classification
N1  - Bibliog. p.197-200
ER  -