referencing reports

[2] R. J. Hijmans and J. van Etten, “Raster: Geographic analysis and modeling with raster data,” R Package Version 2.0-12, Jan. 12, 2012. [Online]. Available: http://CRAN.R-project.org/package=raster
Check that you are using the standard abbreviations for reports

There is no change in format between a footnote reference and a bibliography entry.
Example : Scottish Law Commission, Damages for Psychiatric Injury ( Scot Law Com No 196, 2004).