00446naa a2200145 a 450000100080000000500110000800800410001910000200006024501100008026000090019065000140019965300170021370000170023077300530024716000751995-06-27 1978 bl --- 0-- u #d1 aUPCHURCH, R. G. aAmmonia assimilation in Rhizobium japonicum colonial derivatives differing in nitrogen fixing efficiency. c1978 aRhizobium aFBN IN VITRO1 aELKAN, G. H. tJ. Gen. Microbiol.gv.104, n.2, p.219-226, 1978.