00550nam172200169 4500 2000100000002100059001002150024001591010018001838010034002010100015002357000021002507010018002716060042002896060031003316760010003626870008003721 aNitrogen fixing organismsepure and applied aspectsfSprent Janet I.,..., Sprent Peter,...bLIV aLondon, New York, Tokyo [et al.]cChapman & Halld1990 a256 p.cill.d24 cm aengcundgfre aFRbNOUf187398c20021015dBB a0412346907 1aSprentbJanet I. 1aSprentbPeter aPlantesxAmélioration génétique aGénétique végétale a581.3 aADO