000 00336nam a2200145Ia 4500
020 _a9780435171988
082 _b123 T
_a510
100 _a"BLAIR, JOHN T"
245 0 _aEXTENSION Textbook 3
260 _bHEINEMANN
_aPAKISTAN
_c2011
300 _a117
944 _cTR
999 _c776529
_d776529