What does "s.n." in the Publisher field mean?

blockeliz

I assume it means "unknown" in some form, because it shows up mostly for my early citations (pre-1920).

Rintze

It's Latin for "without a name":

http://en.wikipedia.org/wiki/Sine_nomine
http://libweb.anglia.ac.uk/referencing/harvard.htm?harvard_id=66#66

blockeliz

Many thanks.