Plunkett Foundation for Co-operative Studies. Agricultural Co-operation Organisation Chart. London: Plunkett Foundation for Co-operative Studies.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিPlunkett Foundation for Co-operative Studies. Agricultural Co-operation Organisation Chart. London: Plunkett Foundation for Co-operative Studies.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিPlunkett Foundation for Co-operative Studies. Agricultural Co-operation Organisation Chart. London: Plunkett Foundation for Co-operative Studies.
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