1. Canada Department of Energy, Mines, and Resources., 1977 . Oil and natural gas resources of Canada, 1976. Canada Dept. of Energy, Mines, and Resources Rept. EP-77-1. 76 pp.
2. G. H. Davis, J. H. Green, F. H. Olmsted, and D. W. Brown . 1959 . Ground-water conditions and storage capacity in the San Joaquin Valley, California. U.S. Geol. Survey Water-Supply Paper 1469. 287 pp.
3. Kriging in the hydrosciences