00409nam a2200133Ia 4500008004100000020002300041040002600064082001500090100007900105245002700184260004300211003000400254005001700258241206s9999||||xx |||||||||||||| ||und||  a9788131309759c139  bengcSSK Libraryerda  a371.33/PAC  a Dr. Suresh  Chandra Pachauri,  Dr. Pardeep  Kumar,  Dr. Pratap Singh Rana 0aEducational Technology  b A.P.H. Publishing Corporationc©2011OSt20241206223200.0