TY  - GEN
AU  - Beek D P, Materon L A
TI  - Nitrogen fixation by legumes in mediteranean agriculture
T2  - Developments in plant and soilo  sciences
SN  - 9024736242
U1  - 633.  3048947 BEC 
CY  - Dordreeht, Martinus nijhoff publishers
KW  - Legumes-congreses/legumes-mediteranean nitrogen fixation
ER  -