00270nam a2200097 a 450000500170000000800410001704100080005810000180006624500690008426400190015320260717091947.0260717s2003 ii 000 0 eng d aeng1 aTombs, Michal13aAn Introduction to Polysaccharide Biotechnology /cTombs, Michal 1bTaylor,c2003.