Tolley, Leslie Carroll. 1982. ?The Effects Of Atmospheric Carbon Dioxide Enrichment, Irradiance And Water Stress On Seedling Growth And Physiology Of Liquidambar Styraciflua And Pinus Taeda?. Botany. Botany. Duke University. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=752091331&sid=6&Fmt=2&clientId=43922&RQT=309&VName=PQD.