![Problem Department]()
Problem DepartmentWilliam E. Byrne, Howard D. Grossman, V. Thebault, Gertrude S. Ketchum, Paul D. Thomas, H. T. R. Aude, Walter B. Clarke, John H. Giese, Nelson Robinson, D. L. MacKay, E. P. Starke, W. Raymond Crosier, Robert C. Yates and Comptometer · National Mathematics Magazine · 1941