Long-term experiments in agricultural and ecological sciences : proceedings of a conference to celebrate the 150th anniversary of Rothamsted Experimental Station, held at Rothamsted, 14-17 July 1993 /
Leigh, R. A.(Roger A)
Johnston, A. E.
C.A.B. International.
Rothamsted Experimental Station.
Walllingford : CAB International, 
c1994.
Agriculture
Agriculture
Agriculture
Ecology
Ecology
Ecology