00307nam a2200109 a 450000500170000002000150001708200240003210000300005624500520008626000380013830000210017620251203091850.0  a8170901103  a954.821732,bD, ven  aVenkata Subramanian, T.K.  aEnvironment and urbanisation in early Tamilakam  aThanjavurbTamil Universityc1988  aviii, 160p, 22cm