Gazal, R. M. (2002). Sap flow and drought tolerance of bottomland oaks. ProQuest Information and Learning Company.
Chicago-viite (17. p.)Gazal, Rico M. Sap Flow and Drought Tolerance of Bottomland Oaks. Ann Arbor Michigan: ProQuest Information and Learning Company, 2002.
MLA-viite (9. p.)Gazal, Rico M. Sap Flow and Drought Tolerance of Bottomland Oaks. ProQuest Information and Learning Company, 2002.
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