Gazal, R. M. (2002). Sap flow and drought tolerance of bottomland oaks. ProQuest Information and Learning Company.
Citazione stile Chigago Style (17a edizione)Gazal, Rico M. Sap Flow and Drought Tolerance of Bottomland Oaks. Ann Arbor Michigan: ProQuest Information and Learning Company, 2002.
Citatione MLA (9a ed.)Gazal, Rico M. Sap Flow and Drought Tolerance of Bottomland Oaks. ProQuest Information and Learning Company, 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.