Make all occurrences of string superscript

I'm currently using Pages to write a rather long essay and have run into an annoying problem I can't seem to find the answer to. I have included a bibliography in my document and have referenced the bibliography elsewhere in the essay with ` where 1` is the book number I am referencing. Here is an example sentence: > Here we see , "the quick brown fox", jumps over the "Lazy dog". My intention is to format the sentence like this: > Here we see , "the quick brown fox" , jumps over the "Lazy dog". Whilst I understand you can select the text, click Format, Font, Baseline and select Superscript; this would take an extremely long time to do as there are around 100 places where I would need to do this. Is there a way to find and replace a string, e.g. with , throughout the whole document?