Putting a warning back in for testing.

inst/CITATION

@@ -5,7 +5,7 @@ bibentry(bibtype = "InBook",
               as.person("Robert M. Hirsch"),
               as.person("Laura A. De Cicco")),
   title = "User guide to Exploration and Graphics for RivEr Trends (EGRET) and dataRetrieval: R packages for hydrologic data",
-  publisher = "U.S. Geological Survey",
+
   address="Reston, VA",
   booktitle = "Techniques and Methods",
   institution = "U.S. Geological Survey",