in blah.tex , I have a
\cite{blah}
I have a 'blah' entry in blah.bib
I run my file with :
latex blah.tex && blah.tex && dvipdf blah.dvi
The blah.pdf results in [?]
How do I fix this?
You are missing a second latex:
latex blah.tex && latex blah.tex && dvipdf blah.dvi
------------------^
If you use BibTex (which you obviously do), you'll probably have to issue the command a third time (two times after applying bibtex blah):
latex blah.tex && \ # that's for preparing for bibtex
bibtex blah && \
latex blah.tex && \ # that's for resolving the crossrefs
latex blah.tex && \ # and that for putting them in the right place
dvipdf blah.dvi