http://tags.library.upenn.edu/tag/libraries+five_laws PennTags Feed for /tag/libraries+five_laws PennTags Feed http://tags.library.upenn.edu/makerecord/url/5055 http://tags.library.upenn.edu/makerecord/url/5055 Ranganathan for IAs - Boxes and Arrows A nice essay on Ranganathan, including the Five Laws.<br />