(CONTAM), E. P. o. C. i. t. F. C. (2011). Scientific Opinion on Pyrrolizidine alkaloids in food and feed. Wiley.
Cita Chicago Style (17a ed.)(CONTAM), EFSA Panel on Contaminants in the Food Chain. Scientific Opinion on Pyrrolizidine Alkaloids in Food and Feed. Wiley, 2011.
Cita MLA (8a ed.)(CONTAM), EFSA Panel on Contaminants in the Food Chain. Scientific Opinion on Pyrrolizidine Alkaloids in Food and Feed. Wiley, 2011.
Precaución: Estas citas no son 100% exactas.