共 12 条
[1]
[Anonymous], 1962, SOIL SURVEY MANUAL
[3]
BLOKHUIS WA, 1964, 8 T INT C SOIL SCI B, V5, P591
[4]
BREWER R, 1964, FABRIC MINERAL ANALY
[5]
DEVOS TNC, 1969, J SOIL SCI, V20, P189
[6]
HARRISON MN, 1958, 2 SUD MIN AGR FOR B
[7]
JONGERIUS A, 1963, 1 NETH SOIL SURV I S
[8]
Jongerius A., 1964, REV INVEST AGROPEC, V1, P33
[9]
KERPEN W, 1960, MIKROSKOP UNTERSUCHU, V10, P303
[10]
RODE AA, 1960, SOVIET SOIL SCI, P799