Plunkett Foundation for Co-operative Studies. Agricultural Co-operation Organisation Chart. London: Plunkett Foundation for Co-operative Studies.
Citazione stile Chigago Style (17a edizione)Plunkett Foundation for Co-operative Studies. Agricultural Co-operation Organisation Chart. London: Plunkett Foundation for Co-operative Studies.
Citatione MLA (8a ed.)Plunkett Foundation for Co-operative Studies. Agricultural Co-operation Organisation Chart. London: Plunkett Foundation for Co-operative Studies.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.