00780nam0-22002771i-450-99000030975040332120001010000030975FED01000030975(Aleph)000030975FED0100003097520001010d--------km-y0itay50------baitay-------001yyNatural rock asphalts and bitumens, their geology, history, prooerties and industrial applications.By Arthur DanbyLondonConstable & Company1913VIII,244 p., ill., 19 cm660Danby,ArthurITUNINARICAUNIMARCBK99000030975040332104 106-3CI 01342DINCHDINCHUNINAING01