000
00343nam a2200109Ia 45e0
008
181001s1990 xx 000 0 und d
100
_a
Studman J. Clifford
245
0
_a
Agricultural and horticultural engineering
260
_c
1990
300
_a
510
942
_2
ddc
_c
BK
999
_c
4616
_d
4616