00259nam a2200109 a 450000500170000002000150001708200200003210000140005224500270006626000380009330000180013120251203091927.0  a8172160259  a796.01,bD, Roy  aRoy, S.S.  aSports and environment  aDelhibFriends Publicationsc1994  a102p.c21 cm.