TY - BOOK AU - Prem Sunder AU - Sunder, Prem TI - Principles of educational system SN - 9788189983192 U1 - 370.954 PY - 2009/// CY - New Delhi PB - Khel Sahitya Kendra UR - http://www.loc.gov/catdir/toc/ecip0721/2007025342.html ER -