00785nam0-22002891i-450-99000034782040332120001010000034782FED01000034782(Aleph)000034782FED0100003478220001010d--------km-y0itay50------baitay-------001yy<<An >>Introduction to Coal Technology.N. Berkowitz.New YorkAcademic Press1979XIV,345 p., ill., 24 cm662Berkowitz,Norbert17069ITUNINARICAUNIMARCBK99000034782040332104 105-84IRC 1373/LDINCHDINCHIntroduction to Coal Technology125413UNINAING0100551nam2 22002171i 450 990002364240403321000236424FED01000236424(Aleph)000236424FED0100023642420030801d--------km-y0itay50------baWhat is a sponge?p. 27-28.001000222969Levi,Claude91732ITUNINARICAUNIMARCBK990002364240403321FFABCWhat is a sponge?p. 27-28440891UNINAING01