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- [34] Estimation of the denitrification in the Lower Mississippi Valley DCABES 2001 PROCEEDINGS, 2001, : 250 - 251
- [39] Stratigraphic problems in the upper Mississippi Valley BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA, 1934, 45 (1/3): : 21 - 79
- [40] SUPPLEMENTAL IRRIGATION IN UPPER MISSISSIPPI VALLEY PROFESSIONAL GEOGRAPHER, 1967, 19 (04): : 184 - 188