TY - BOOK AU - Gopinath M. A. Ed. AU - Mangai M. A. Alar Mel Ed. TI - Subject classification practice : S.R.Ranganthan's postulational approach U1 - 2:51, P4-;4(2D) PY - 2004/// CY - Banglore PB - Ess Ess pub. KW - LIBRARY SCIENCE ER -