TY  - GEN
AU  - Hewitt E J, Catting CV
TI  - Recent aspects of nitrogen metabolism in plants; proceedings of the symposium held at long Ashton research station, university of Bristol
T2  - First long Ashton symposium 1967
U1  - 581.  1335 REC 
CY  - London, Academic press
KW  - Nitrogen metabolism/metabolism-fixation
ER  -