Barlow, P. M. (2002). Concepts for national assessment of water availability and use. US Geological Survey circular 1223.
Chicago-stil citatBarlow, Paul M. "Concepts for National Assessment of Water Availability and Use." US Geological Survey Circular 1223 2002.
MLA-referensBarlow, Paul M. "Concepts for National Assessment of Water Availability and Use." US Geological Survey Circular 1223 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.