000 00314nam a22001337a 4500
003 OSt
020 _a9788176224321
100 _aRajesh Gupta and B S Gupta
245 _aTractor ki Sendhantik evam Vyavaharik Jankari
250 _a2018
260 _aNew Delhi
_bBioteck Books
300 _a130pp
942 _2ddc
_cBK
999 _c52582
_d52582