共 36 条
[1]
BAKER, 1953, 447 NEBR EXPTL STA B, P24
[2]
BAKER GN, 1960, SB458 NEBR AGR EXPT
[3]
BAKER GN, 1961, 84 NEBR AGR EXPT STA
[4]
BAKER ML, 1951, 402 NEBR AGR EXPT ST
[5]
BAKER ML, 1959, 447 NEBR AGR EXPT ST
[6]
CHRISTENSEN FW, 1935, 286 NORTH DAK AGR EX, P14
[7]
GOSS H, 1954, CALIF AGR, V8, P15
[8]
GRAU C. R., 1953, CALIFORNIA AGRIC, V7, P8
[9]
HALLORAN HR, 1961, FEEDSTUFFS, V33, P70
[10]
HEINEMANN WW, 1953, 543 WASH STAT U AGR