Joseph, P.V. Dynamics and speciation of heavy metals in the lower reaches of chitrapuzha - A tropical tidal river - Kochi Dept. of Chemical Oceanography - CUSAT 2002 - 217p. Guide : Jacob ChackoThesis (Ph.D), CUSAT, 2002 Subjects--Index Terms: Mineralogy General geology Guide : Jacob Chacko Universal Decimal Class. No.: 549.1:551.4601 / JOS