An introduction to universal decimal classification /
Sehgal, R. L.
An introduction to universal decimal classification / R.L. Sehgal. - New Delhi : Ess Ess , 2002. - 266 p. ; 23 cm.
Includes bibliographical references.
8170001668(hbk. )
An introduction to universal decimal classification / R.L. Sehgal. - New Delhi : Ess Ess , 2002. - 266 p. ; 23 cm.
Includes bibliographical references.
8170001668(hbk. )