00573nam172200181 4500 090001100000200010000011210005900111215002400170101001800194801003400212010001500246700002100261701001800282606004200300606003100342676001000373687000800383 91607291 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