TY  - BOOK
AU  - JOHNSON B.C.
TI  - PHYSIOLOGICAL PROCESSES LIMITING PLANT PRODUCTIVITY
SN  - 0 408 10649 2
AV  - 631.54/JOH 2
U1  - 631.54/JOH 
PY  - 1981///
CY  - LONDON 
PB  - BUTTERWORTHS
ER  -