APA Citation

 Troeh, F. R. (2003).  Dictionary of Agricultural and Environmental Science.  Iowa State Press.

Trích dẫn kiểu Chicago

 Troeh, Frederick R.  Dictionary of Agricultural and Environmental Science.  Iowa State Press, 2003.

MLA Citation

 Troeh, Frederick R.  Dictionary of Agricultural and Environmental Science.  Iowa State Press, 2003.

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