المؤلفون: Armstrong, James W., Dugan, F. C., Sabin, M. S., Flentje, Martin E., Lathrop, Thomas R., Norcom, George D., Trowbridge, Charles E., Moses, H. E., Lauter, Carl J.

المصدر: Journal (American Water Works Association), 1931 Nov 01. 23(11), 1865-1883.

URL الوصول: https://www.jstor.org/stable/41228279

المؤلفون: Dugan, F. C., Kepner, Dana E.

المصدر: Journal (American Water Works Association), 1930 Apr 01. 22(4), 547-550.

URL الوصول: https://www.jstor.org/stable/41225669

المؤلفون: Fleming, John D., Dugan, F. C.

المصدر: Journal (American Water Works Association), 1930 Dec 01. 22(12), 1559-1576.

URL الوصول: https://www.jstor.org/stable/41228080

المؤلفون: Dugan, F. C.

المصدر: Journal (American Water Works Association), 1931 Apr 01. 23(4), 597-598.

URL الوصول: https://www.jstor.org/stable/41228011

المؤلفون: Babbitt, H. E., Brush, W. W., Dugan, F. C., Holmquist, C. A., Knox, W. A., Wolman, Abel, Carpenter, Lewis V., Cohn, Chester, Cox, Charles R., Weir, W. H., Gorman, Arthur E., Gallaher, William U., Fox, Charles L., Caird, James M., Peirce, W. A., Goudey, R. F., Hopkins, E. S.

المصدر: Journal (American Water Works Association), 1935 Oct 01. 27(10), 1392-1405.

URL الوصول: https://www.jstor.org/stable/41226343

المؤلفون: Berry, A. E., Findlay, R. E., Foote, H. B., Dugan, F. C., Doland, J. J.

المصدر: Journal (American Water Works Association), 1933 Jul 01. 25(7), 1016-1026.

URL الوصول: https://www.jstor.org/stable/41225863

المؤلفون: Dugan, F. C.

المصدر: Journal (American Water Works Association), 1929 Apr 01. 21(4), 556-558.

URL الوصول: https://www.jstor.org/stable/41225701

المؤلفون: Gordon, Robert G., Hansen, Paul, Dugan, F. C., Sheahan, James, Clemens, Albert, Cramer, W. S., Lovejoy, W. H., Vance, L. S., Porzelius, A. F., Little, Beekman C., Old, H. N., Patten, W. S.

المصدر: Journal (American Water Works Association), 1929 Oct 01. 21(10), 1291-1299.

URL الوصول: https://www.jstor.org/stable/41225720

المؤلفون: Dugan, F. C., Kepner, D. E., Enger, M. L.

المصدر: Journal (American Water Works Association), 1927 May 01. 17(5), 604-612.

URL الوصول: https://www.jstor.org/stable/41227390

المؤلفون: Dugan, F. C.

المصدر: Journal (American Water Works Association), 1928 Apr 01. 19(4), 458-461.

URL الوصول: https://www.jstor.org/stable/41227570