00822nam0-2200313---450-99001005441040332120160317081254.00408004401001005441FED01001005441(Aleph)001005441FED0100100544120160317d1980----km-y0itay50------baengGBa-------001yyGem testingB.W. Anderson9nd edLondon [etc.]Butterworth1980434 p.ill.22 cmPietre prezioseIdentificazioneAnderson,Basil William592887ITUNINARICAUNIMARCBK990010054410403321TECN 52211/2016DARSTDARSTGem testing1000585UNINA