00314nam a2200109Ia 4500008004100000082002200041100002300063245003200086260005700118300001000175650001900185140113s9999    xx            000 0 und d  a631.81.095.337 L3  a"Yogesan Nair, J."  aSukshmamulakangal krishiyil  b"Thiruvananthapuram : Kerala bhasha institute, 1973"  a229p.  aTrace elements