International Conference of Agricultural Economists & International Association of Agricultural Economists. (1956). Proceedings of the ninth International Conference of Agricultural Economists. oxford university press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)International Conference of Agricultural Economists ба International Association of Agricultural Economists. Proceedings of the Ninth International Conference of Agricultural Economists. new York: oxford university press, 1956.
MLA -ийн эшлэл (9 дэх хэвлэлт)International Conference of Agricultural Economists ба International Association of Agricultural Economists. Proceedings of the Ninth International Conference of Agricultural Economists. oxford university press, 1956.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.