000
00285nam a2200121Ia 4500
008
191031s9999 xx 000 0 und d
100
_a
Heady. Dillon
245
0
_a
Agricultural production functions
260
_b
Kalyani Publication
260
_c
1961
365
_b
12
942
_c
BK
999
_c
215513
_d
215513