FBM. (1993). Soil management: A useful guidebook for farm managers with common soil problems. Illinois: John Deere.
Citação norma ChicagoFBM. Soil Management: A Useful Guidebook for Farm Managers With Common Soil Problems. Illinois: John Deere, 1993.
Citação norma MLAFBM. Soil Management: A Useful Guidebook for Farm Managers With Common Soil Problems. Illinois: John Deere, 1993.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.