citHeader("To cite package 'season' in publications use:")
     
     desc <- packageDescription("season")
     year <- sub(".*(2[[:digit:]]{3})-.*", "\\1", desc$Date)
     vers <- paste("R package version", desc$Version)
     
     citEntry(entry="book",
              title = "Analysing Seasonal Health Data",
              author = personList(as.person("Adrian G Barnett"),
                                  as.person("Annette J Dobson")),
              publisher = "Springer",
              address = "Berlin, Heidelberg",
              year = "2009",
     
              textVersion =
              paste("Adrian G Barnett, Annette J Dobson (2009)",
                    " Analysing Seasonal Health Data.",
                    " Springer. Berlin, Heidelberg.", sep=""))