1. Position of the American Dietetic Association. Vegetarian diets;ADA;Journal of the American Dietetic Association,2009
2. Sustainable protein production and consumption. Pigs or Peas? Environment & policy;Aiking,2006
3. Allan, J. (1993). Fortunately there are substitutes for water otherwise our hydro-political futures would be impossible (pp. 13–26).
4. Allan, J. (1994). Overall perspectives on countries and regions. In P. Rogers, P. Lydon, (Eds.), Water in the Arab world. Perspectives and prognoses (pp. 65–100).
5. ARC (2012). ARC2020’s reaction to the EU Commission’s legislative proposals for the future CAP. Agricultural and Rural Convention 2020 (ARC), Brussels.