Biological efficiency in agriculture /
Spedding, C. R. W.
Biological efficiency in agriculture / C.R.W. Spedding, J.M. Walsingham and A.M. Hoxey - London : Academic Press, 1981 - 383 p. ; 24 cm.
0126565600
80-042231
Field crops--Physiology
Biological efficiency in agriculture / C.R.W. Spedding, J.M. Walsingham and A.M. Hoxey - London : Academic Press, 1981 - 383 p. ; 24 cm.
0126565600
80-042231
Field crops--Physiology
