FAO. (1993). Technical handbook on symbiotic nitrogen fixation: Legume/Rhizobium. Rome: FAO.
Trích dẫn kiểu ChicagoFAO. Technical Handbook On Symbiotic Nitrogen Fixation: Legume/Rhizobium. Rome: FAO, 1993.
MLA citiranjeFAO. Technical Handbook On Symbiotic Nitrogen Fixation: Legume/Rhizobium. Rome: FAO, 1993.
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