000 00311nam a2200133Ia 4500
008 160316s1953 xxu||||| |||| 00| 0 eng d
020 _a
100 _aW. Lawrence Balls
245 _aThe Yields Of A Crop
250 _a1st
260 _aLONDON
_bE. & F. N . SPON LMITED
_c1953
300 _a144
700 _a
_a
999 _c34829
_d34829