Quelle

Menal-Puey S., Martínez-Biarge M., Marques-Lopes I., Developing a Food Exchange System for Meal Planning in Vegan Children and Adolescents, „Nutrients” 2018, 11(1).
Normy żywienia dla populacji Polski, pod red. Jarosza M., Warszawa 2017.
Salter A.M., The effects of meat consumption on global health, „Revue Scientifique et Technique” 2018, 37(1), 47–55.