M. R. Collins, Cole, J. O., Westersund, C. M., y Paris, D. B.,
«Assessing roughing filtration design variables»,
Water supply : the review journal of the International Water Supply Association, pp. p. SS 5.29 - 5.40: 9 fig., 11 tab., 1994.
M. R. Collins, Roccaro, J. V., Cole, J. O., y Westersund, C. M.,
Evaluation of roughing filtration design variables. Denver, CO, USA: American Water Works Association, 1994, p. xxvii, 181 p.: 83 fig., 50 tab.