Lua APA (7ú heag.)
ebrary, Inc, & Rengel, Z. (2013). Improving water and nutrient-use efficiency in food production systems. John Wiley & Sons, Inc..
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Zdenko Rengel. Improving Water and Nutrient-use Efficiency in Food Production Systems. Ames, Iowa: John Wiley & Sons, Inc., 2013.
Lua MLA (9ú heag.)
ebrary, Inc, agus Zdenko Rengel. Improving Water and Nutrient-use Efficiency in Food Production Systems. John Wiley & Sons, Inc., 2013.
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