Spedding, C. R. W.
Biological efficiency in agriculture / C.R.W. Spedding, J.M. Walsingham, and A.M. Hoxey. - New York : Academic Press, c1981. - x, 383 p. : ill. ; 23 cm.
Includes bibliographies and index.
0126565600
80042231
GB***
Agricultural productivity.
Biological productivity.
Agriculture.
Biology, Economic.
S494.5.P75 / S63
631.5 / SPB
Biological efficiency in agriculture / C.R.W. Spedding, J.M. Walsingham, and A.M. Hoxey. - New York : Academic Press, c1981. - x, 383 p. : ill. ; 23 cm.
Includes bibliographies and index.
0126565600
80042231
GB***
Agricultural productivity.
Biological productivity.
Agriculture.
Biology, Economic.
S494.5.P75 / S63
631.5 / SPB