Zamora, A. S., Pfister, M., Hager, W. H., & Minor, H. (2009). Closure to “Hydraulic Performance of Step-Aerator” by Anina Schiess Zamora, Michael Pfister, Willi H. Hager, and Hans-Erwin Minor. Journal of Hydraulic Engineering, 135(7), 621. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000084
Chicago Style (17th ed.) CitationZamora, Anina Schiess, Michael Pfister, Willi H. Hager, and Hans-Erwin Minor. "Closure to “Hydraulic Performance of Step-Aerator” by Anina Schiess Zamora, Michael Pfister, Willi H. Hager, and Hans-Erwin Minor." Journal of Hydraulic Engineering 135, no. 7 (2009): 621. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000084.
MLA (9th ed.) CitationZamora, Anina Schiess, et al. "Closure to “Hydraulic Performance of Step-Aerator” by Anina Schiess Zamora, Michael Pfister, Willi H. Hager, and Hans-Erwin Minor." Journal of Hydraulic Engineering, vol. 135, no. 7, 2009, p. 621, https://doi.org/10.1061/(ASCE)HY.1943-7900.0000084.