000 00273nam a2200097 4500
245 _aNon-formal education
_cK. Rayyalakshmi
100 _aRayyalakshm,K
260 _aNew Delhi
_bDiscovery Publishing House
_c1989
300 _axxii,332p.: tables; 22cm.
082 _a370.190954
_bRAJ
999 _c57908
_d57908