composition
Isotopic composition of soil carbon dioxide in the Tucson basin
1981
Isotopic composition of soil carbon dioxide in the Tucson basin
Parada, Carmen Bajos
Master's Thesis
Hydrology
Stanley N. Davis
PDF of abstract here
Changes in concentration and composition of dissolved and particulate organic matter in the upper San Pedro river, Arizona in response to changes in flow regime
2003
Changes in concentration and composition of dissolved and particulate organic matter in the upper San Pedro river, Arizona in response to changes in flow regime
Haas, Peter Andrew
Master's Thesis
Hydrology
Paul D. Brooks
PDF file of abstract here