共 8 条
- [1] Balls W.L., 1912, COTTON PLANT EGYPT
- [2] BALLS WL, 1910, YB KHEDIV AGR SOC 19
- [3] HARLAND SC, 1915, ST CROIX AGR EXP STA
- [4] HOWARD A, 1924, MEM DEP AGR INDIA BO, V13
- [5] KEARNEY TH, 1924, J AGR RES, V27
- [6] KEARNEY TH, 1923, USDA B, V1164
- [7] LEAKE HM, 1914, MEM DEP AGR INDIA BO, V6
- [8] MCLENDON CA, 1912, GA AGR EXP STA B, V99