00335nam a2200133Ia 4500008004100000020001700041082001000058082001000068100002200078245005400100260001500154260002300169260000900192230118s9999||||xx |||||||||||||| ||und||  a81-7371-0937  a547.7  bKRI/C  an rbkrishnaswamy 0achemistry of natural products a uniffied approach  aHEYDERABAD  buniversitiespress   c1999