Diehl, S., Sparr, G., & Olsson, G. (1990). ANALYTICAL AND NUMERICAL DESCRIPTION OF THE SETTLING PROCESS IN THE ACTIVATED SLUDGE OPERATION. Instrumentation, Control and Automation of Water and Wastewater Treatment and Transport Systems, 471-478. https://doi.org/10.1016/B978-0-08-040776-0.50063-9
Chicago Style (17th ed.) CitationDiehl, Stefan, Gunnar Sparr, and Gustaf Olsson. "ANALYTICAL AND NUMERICAL DESCRIPTION OF THE SETTLING PROCESS IN THE ACTIVATED SLUDGE OPERATION." Instrumentation, Control and Automation of Water and Wastewater Treatment and Transport Systems 1990: 471-478. https://doi.org/10.1016/B978-0-08-040776-0.50063-9.
MLA (9th ed.) CitationDiehl, Stefan, et al. "ANALYTICAL AND NUMERICAL DESCRIPTION OF THE SETTLING PROCESS IN THE ACTIVATED SLUDGE OPERATION." Instrumentation, Control and Automation of Water and Wastewater Treatment and Transport Systems, 1990, pp. 471-478, https://doi.org/10.1016/B978-0-08-040776-0.50063-9.