APA
B.J. Dutka, A.H. El-Shaarawi, . (1990). Use of simple, inexpensive microbial water quality tests : Results of a three-continent, eight country research project. Burlington: National Water Research Institute.
Chicago
B.J. Dutka, A.H. El-Shaarawi, . 1990. Use of simple, inexpensive microbial water quality tests : Results of a three-continent, eight country research project. Burlington: National Water Research Institute.
Harvard
B.J. Dutka, A.H. El-Shaarawi, . (1990). Use of simple, inexpensive microbial water quality tests : Results of a three-continent, eight country research project. Burlington: National Water Research Institute.
MLA
B.J. Dutka, A.H. El-Shaarawi, . Use of simple, inexpensive microbial water quality tests : Results of a three-continent, eight country research project. Burlington: National Water Research Institute. 1990.