Thakur, D.S.
Scientific and Technical Libraries D.S. Thakur - New Delhi: Ess; c2006. - xxii; 518p. : ill.; 22cm.
027.6 / THS
Scientific and Technical Libraries D.S. Thakur - New Delhi: Ess; c2006. - xxii; 518p. : ill.; 22cm.
027.6 / THS