Mathematics :
Prof Lal Mohan .
Mathematics : A textbook for secondary schools Part I / Convener and Editor Prof.Mohan Lal. - New Delhi : NCERT, 1986. - 294 p. : ill. ; 24 cm.
510 LAL.
Mathematics : A textbook for secondary schools Part I / Convener and Editor Prof.Mohan Lal. - New Delhi : NCERT, 1986. - 294 p. : ill. ; 24 cm.
510 LAL.