Shrivastara A .K.  / Ranjan, R .K.  <br/><br/>
A hand book for Teachers :  Reseach in teaching of ecology and environment  
A K . Shrivastava / E .K.  Ranjan , R .K 
 - New Delhi  A . P . H .Publishing  2005 
 - xii, 205p.: ill,  pbk 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biotic Communities  --Study and teaching