Suggested citation and version history for Nakata, Jennifer, compiler, 2007, Hawaiian Volcano Observatory 1973 Quarterly Administrative reports: U.S. Geological Survey Open-File Report 2007-1333, 177 p. [http://pubs.usgs.gov/of/2007/1333/]. Version 1.0, December 8, 2007 Re-released online at http://pubs.usgs.gov/of/2007/1333/ 1973 Initial release in paper form