Singh, Y. K. Dr. <br/><br/>
Teaching of environmental science  : modified syllabus of B.T.C./M.ED. of Indian & Foreign University/training institute &education colleges recognized by National Council of Teacher Education, New Delhi 
Dr. Y. K. Singh 
 - New Delhi  A.P.H. Publishing House  2005 
 - x, 366p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Enviromental science
<br/><br/><label>Dewey Class. No.: </label>363.7  / SIT