共 6 条
- [1] BARNES TC, 1928, THESIS U CAMBRIDGE
- [2] GRAHAM SA, 1926, 449 CORN U AGR EXP S
- [3] HOPKINS AD, 1911, USDA20 BUR ENT TECH, P1
- [4] JAYNES HA, 1958, 105 US FOR SERV NORT
- [5] MACALONEY HJ, 1932, 221 USDA BUT ENT PLA
- [6] MARQUIS RW, 1964, 1963 NORTH FOR EX ED