Meeker et al., 2006. In: Essential rendering. Meeker (Ed). National Renderers Association Document reference Meeker, D. L. ; Hamilton, C. R., 2006. An overview of the rendering industry. In: Essential rendering. Meeker (Ed). National Renderers AssociationWeb http://nationalrenderers.org/publications/essential-rendering/Citation key Meeker et al., 2006Datasheets Poultry by-product meal
