Simulation of water use, nitrogen nutrition and growth of a spring wheat crop : Keulen, H. van and Seligman, N. G. PUDOC Wageningen, The Netherlands, 1987. v + 310 pp. Price: Dfl. 100[middle dot]00

Perspectives in grassland ecology. Results and applications of the US/IBP grassland biome study : French, N. R. (Editor). Springer-Verlag, Heidelberg-Berlin-New York. 60 Figs., 47 Tables, xi + 204 pp. 1979. Price (cloth): DM 54., US$29[middle dot]70.

Brockington, N. R., (1982)

Tropical pasture science : Whiteman, P. C. (With contributions by Waring, S. A., Wallis, E. S. and Bruce, R. C.) Oxford University Press, 392pp., 1980. Price (hard-cover): [pound sign]20[middle dot]00

Brockington, N. R., (1982)

Quantitative aspects of ruminant digestion and metabolism : Edited by J. M. Forbes and J. France. CAB International, Wallingford, 1993. 515 pp. Price: [pound sign]65 (hardback). ISBN 0 85198 831 8

Brockington, N. R., (1994)