Organisation for Economic Co-operation and Development. (2016). Policy guidance on resource efficiency. Organisation for Economic Co-operation and Development.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিOrganisation for Economic Co-operation and Development. Policy Guidance on Resource Efficiency. Paris, France: Organisation for Economic Co-operation and Development, 2016.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিOrganisation for Economic Co-operation and Development. Policy Guidance on Resource Efficiency. Organisation for Economic Co-operation and Development, 2016.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.