共 378 条
[51]
DESIGMOND AAJ, 1927, 1ST P INT C SOIL SCI, V1, P330
[52]
DESIGMOND AAJ, 1924, 4 ACT C INTL PED ROM, V2, P434
[53]
DESIGMOND AAJ, 1927, CAL AGR EXP STA SPEC
[54]
DESIGMOND AAJ, 1932, IMP BUR SOIL SCI TEC, P23
[55]
DESIGMOND AAJ, 1926, T SEC COMM INT SOC A, P55
[56]
DESIGMOND AAJ, 1933, SOIL RES, V3, P103
[57]
DESIGMOND AAJ, 1928, 1ST P INT C SOIL SCI, V2, P512
[58]
DEWET JD, 1934, FARM SO AFRICA, V9, P69
[59]
DORSEY CW, 1906, USDA BUR SOILS B, V35
[60]
DOUGHTY J. L., 1940, SCI AGRIC [OTTAWA], V20, P272