[racket] scribble: bracketed numbers with autobib

How can I get scribble to generate references like

"blah [1]"

instead of

"blah (Foobar 2010)"

I am already using scribble/autobib with make-bib so I would prefer if I could continue to do so. A quick read of the documentation suggests I should use (cite "foo") and (bib-entry #:key "foo") but then I can't use autobib..