TY  - BOOK
AU  - Lockhart, J.A.R.
AU  - wiseman, A.J.L.
TI  - Introduction to crop husbandry including grassland( sixth edition)
SN  - 0 02 946037 9
U1  - 633 L 811 I 
PY  - 1989///
CY  - New York
PB  - Pergamon
KW  - Crops
KW  - Introduction
ER  -