000 00310nam a2200121Ia 4500
008 140215s9999 xx 000 0 und d
100 _aSwanson Burton E,
245 _aImproving Agricultural Extension
_b
260 _bDaya Publishing House
_aIN
_c
300 _a220
700 _aBentz Robert P.
942 _2cc
_cBK
999 _c5814
_d5814