Buttle, M., & Smith, M. (2002). Out in the cold : emergency water supply and sanitation for cold regions / Mark Buttle and Michael Smith: Emergency water supply and sanitation for cold regions (2nd ed.). Water, Engineering and Development Centre.
Chicago Style (17th ed.) CitationButtle, Mark, and Michael Smith. Out in the Cold : Emergency Water Supply and Sanitation for Cold Regions / Mark Buttle and Michael Smith: Emergency Water Supply and Sanitation for Cold Regions. 2nd ed. Loughborough, Leics.: Water, Engineering and Development Centre, 2002.
MLA (9th ed.) CitationButtle, Mark, and Michael Smith. Out in the Cold : Emergency Water Supply and Sanitation for Cold Regions / Mark Buttle and Michael Smith: Emergency Water Supply and Sanitation for Cold Regions. 2nd ed. Water, Engineering and Development Centre, 2002.