United States Department of Agriculture, & USDA study team on organic farming. (1980). Report and recommendations on organic farming. United States: United States Department of Agriculture.
শিকাগো স্টাইলে সাইটেশনUnited States Department of Agriculture, এবং USDA study team on organic farming. Report and Recommendations On Organic Farming. United States: United States Department of Agriculture, 1980.
এমএলএ সাইটেশনUnited States Department of Agriculture, এবং USDA study team on organic farming. Report and Recommendations On Organic Farming. United States: United States Department of Agriculture, 1980.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.