National Research Council (U.S.). Committee on the Role of Alternative Farming Methods in Modern Production Agriculture. (1989). Alternative agriculture. National Academy Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)National Research Council (U.S.). Committee on the Role of Alternative Farming Methods in Modern Production Agriculture. Alternative Agriculture. Washington, D.C.: National Academy Press, 1989.
MLA -ийн эшлэл (9 дэх хэвлэлт)National Research Council (U.S.). Committee on the Role of Alternative Farming Methods in Modern Production Agriculture. Alternative Agriculture. National Academy Press, 1989.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.