Hydroponics/nutrient film techniques, 1979-1983: 94 citations (Quick bibliography series)
April 9, 2010 by admin
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Hydroponics/nutrient film technique, 1979-85: 187 citations (Quick bibliography series)
April 4, 2010 by admin
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Hydroponics-nutrient film technique, 1981-1986: 197 citations (Quick bibliography series)
March 18, 2010 by admin
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Hydroponics/nutrient film technique 1982-May 1988: 233 citations (Quick bibliography series)
February 28, 2010 by admin
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Hydroponics/nutrient film techniques, 1969-1981: 189 citations (Quick bibliography series)
February 27, 2010 by admin
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Hydroponics-nutrient film technique, January 1983-November 1988: 239 citations (Quick bibliography series)
February 17, 2010 by admin
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