TY  - BOOK
AU  - C.J. Pearson
AU  -  R.L. Ison, 
TI  - Agronomy of grassland systems
SN  - 0-521-32448-3
U1  - 633.2 
PY  - 1987///
CY  - Cambridge
PB  - Cambridge University Press
N1  - C.J. Pearson & R.L. Ison: Agronomy of grassland systems.  Cambridge.  Cambridge University Press, 1987. 0-521-31009-1 0-521-32448-3--(633.2PEA)
ER  -