APA
Dufour A I S. M. K. W. &. B. J., .Assessing Microbioal Safety of Drinking Water : Improving Approaches and Methods .-1-84339-036-1. : World Health Organization, Iwa, Geneva.
Chicago
Dufour A I Snozzi Mario Koster Wolfgang & Bartram Jamie, .Assessing Microbioal Safety of Drinking Water : Improving Approaches and Methods .-1-84339-036-1. : World Health Organization, Iwa, Geneva.
Harvard
Dufour A I S. M. K. W. &. B. J., .Assessing Microbioal Safety of Drinking Water : Improving Approaches and Methods .-1-84339-036-1. : World Health Organization, Iwa, Geneva.
MLA
Dufour A I Snozzi Mario Koster Wolfgang & Bartram Jamie, .: World Health Organization, Iwa, Geneva. .