00261nam a2200097 a 450000500170000010000190001710000220003624500530005826000260011130000260013720251203091303.0  aRamasami, Td_  aThyagarajan, Gd_  aTrends in mineral tanning and resource potential  aChennaibCOSTEDc1987  av, 229 p.c22 cm.bPB