Troeh, F. R. (2003). Dictionary of agricultural and environmental science. Ames, Iowa: Iowa State Press.
Chicago-stil citatTroeh, Frederick R. Dictionary of Agricultural and Environmental Science. Ames, Iowa: Iowa State Press, 2003.
MLA-referensTroeh, Frederick R. Dictionary of Agricultural and Environmental Science. Ames, Iowa: Iowa State Press, 2003.
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