Encyclopaedia: a library of world knowledge / A.H. Mc Dannald. - Delhi : Akashdeep ; 1991. - 3.V.(V.1. 522;V.2. 1002;V.3. 1494) ill. ; 32 cm . ISBN: 8171580300 Subjects--Topical Terms: EncyclopediaLibrary science . Dewey Class. No.: 032 / MCD N91E