Maize production and consumption in Spain, UE and worldwide (1961-2003), by FAO (2008).
Miquel Pujol Palol
CC BY-SA 3.0
<p>PUJOL PALOL, MIQUEL (2008). <i>Les plantes cultivades. 1. Cereals.</i> ISBN: 8460945901, p.379 (imatge n. 11.4).
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