Formatting Style Bibliography Biochemistry

C

Does it matter how the bibliography is formatted, or is it personal choice?
Does anyone know a website, or know if there is a style that should be used?
I've looked at 4 theses from our lab and they all have variations on:
Surname, A., (year). Title. Journal. volume. page-page.
The title/journal/vol they have used bold/italic/underline/"" in different combinations, and some people use fullstops, some commas.

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