APA
comps. Jerry E. Carr ; Edith B. Chase ; Richard Paulson ; David Moody, . (1990). National Water Summary 1987 : hydrologic events and water supply and use. Denver: U.S. Geological Survey.
Chicago
comps. Jerry E. Carr ; Edith B. Chase ; Richard Paulson ; David Moody, . 1990. National Water Summary 1987 : hydrologic events and water supply and use. Denver: U.S. Geological Survey.
Harvard
comps. Jerry E. Carr ; Edith B. Chase ; Richard Paulson ; David Moody, . (1990). National Water Summary 1987 : hydrologic events and water supply and use. Denver: U.S. Geological Survey.
MLA
comps. Jerry E. Carr ; Edith B. Chase ; Richard Paulson ; David Moody, . National Water Summary 1987 : hydrologic events and water supply and use. Denver: U.S. Geological Survey. 1990.