共 8 条
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[3]
MCCALLA AF, 1980, JUN TRAD RES CONS M
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SIMMONS RL, 1976, USDA ERS348 AGR EC R
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*USDA FLOR DEP AGR, 1979, 1978 79 MARK FLOR VE
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ZEPP GA, 1979, USDA ESCS72 REP
[7]
ZEPP GA, 1980, USDA ESCS78 REP
[8]
1980, FED REG 0328