Fair trade, 2005: t.p. (Alex Nicholls) p. viii (Dr Alex Nicholls; PhD, MBA, university lecturer at the Skoll Centre for Social Entrepreneurship within the Saïd Business Sch., Univ. of Oxford)

Biblioteca del congreso (Estados Unidos), 09 agosto 2018: Catálogo electrónico https://goo.gl/8unLYz