TY  - BOOK
AU  - Hudson J P
ED  - University of Natiigham fourth easter scweul in agricultral science (1957 : )
TI  - Proceeding on control of the plant environment
U1  - J:955, J7 
PY  - 1957///
CY  - London
PB  - Butterworths Scientific Publications       
KW  - Agriculture
ER  -