1. A theory of human motivation;Maslow;Psychological Review,1943
2. United Nations Food and Agriculture Organization, Global agriculture towards 2050. , 2009 (cited December 2019).
3. Twenty-First Century Manufacturing;Wright,2001
4. Sustainable ecosystems: enabled by supply and demand management;Patel,2011
5. The agrarian origins of the industrial revolution in England;Patriquin;Review of Radical Political Economics,2004