Coal Versus Sand as a Filter MediumRipple, O. J. · Journal - American Water Works Association · 1938

Section Meeting ReportsR. K. Blanchard, R. M. Finch, L. S. Morgan and O. J. Ripple · Journal (American Water Works Association) · 1949

FILTER SAND STUDIES AT DENVERO. J. Ripple · Journal (American Water Works Association) · 1931

Use of Activated Carbon in Purification PlantsO. J. Ripple · Journal (American Water Works Association) · 1940

Coal Versus Sand as a Filter MediumRipple, O. J. · Journal - American Water Works Association · 1938

Use of Activated Carbon in Purification PlantsRipple, O. J. · Journal - American Water Works Association · 1940

REPORT OF THE COMMITTEE ON FILTERING MATERIALS [with DISCUSSION]James W. Armstrong, W. M. Wallace, Frank W. Herring, John R. Baylis and O. J. Ripple · Journal (American Water Works Association) · 1932

Status and Ecological Effects of the World's Largest CarnivoresRipple, W. J.; Estes, J. A.; Beschta, R. L.; Wilmers, C. C.; Ritchie, E. G.; Hebblewhite, M.; Berger, J.; Elmhagen, B.; Letnic, M.; Nelson, M. P.; Schmitz, O. J.; Smith, D. W.; Wallach, A. D.; Wirsing, A. J. · Science · 2014

Journal of the American Water Works AssociationJournal of Industrial & Engineering Chemistry · 1914

Part 2: INDEX TO THE JOURNAL OF THE AMERICAN WATER WORKS ASSOCIATION: 1940-1944 || SUBJECT INDEXJournal (American Water Works Association) · 1945

Part 2: INDEX TO THE JOURNAL OF THE AMERICAN WATER WORKS ASSOCIATION: 1940-1944 || Front MatterJournal (American Water Works Association) · 1945

Part 2: INDEX TO THE JOURNAL OF THE AMERICAN WATER WORKS ASSOCIATION: 1940-1944 || AUTHOR INDEXJournal (American Water Works Association) · 1945

Part 2: INDEX TO THE JOURNAL OF THE AMERICAN WATER WORKS ASSOCIATION: 1940-1944 || SUBJECT INDEX—TOPICSJournal (American Water Works Association) · 1945

Part 2: INDEX TO THE JOURNAL OF THE AMERICAN WATER WORKS ASSOCIATION: 1940-1944 || KEY TO VOLUME NUMBERSJournal (American Water Works Association) · 1945

The American Water Works Association 1881-1956Frank C. Amsbary Jr. · Journal (American Water Works Association) · 1956

CONSTITUTION OF THE AMERICAN WATER WORKS ASSOCIATIONJournal (American Water Works Association) · 1914