Back, William, (1925-)

Symposium on Geochemistry of Groundwater = 26th International Geological Congress, Paris, 1980 / by: Back, William, (1925-); Workshop on the Preservation of Stability under Discretization ((2001 :); Létolle, René. (Language materials, printed)

Contemporary hydrogeology = the George Burke Maxey memorial volume / by: Maxey, George Burke, (1917-); Stephenson, David A., (1936-); Back, William, (1925-) (Language materials, printed)