KWS & Agri-Nathan. (1987). La Betterave Sucriere. Culture et debouches: Encyclopedie Agricole Pratigue.
Cita Chicago (17th ed.)KWS i Agri-Nathan. La Betterave Sucriere. Culture Et Debouches: Encyclopedie Agricole Pratigue. 1987.
Cita MLA (9th ed.)KWS i Agri-Nathan. La Betterave Sucriere. Culture Et Debouches: Encyclopedie Agricole Pratigue. 1987.
Atenció: Aquestes cites poden no estar 100% correctes.