000 00315nam a2200109Ia 4500
008 211215s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aRoss, Robert c.
245 0 _aIntroduction to agricultural economics
260 _bMc-Graw Hill B. co.
_aNew yark
_c1951
942 _c1
999 _c73667
_d73667