Rothamsted conferences

＜図書＞
Rothamsted conferences


1	6 Power for cultivation and haulage on the farm : being the report of a conference held at rothamsted on february 9th 1928 / sir Merrik Burrell ; with contributions by B.A. Keen ... [et al.] London : Ernest Benn , 1928
2	8 Recent changes in systems of husbandry in England London : Ernest Benn , 1929