a) Oh dear! Always place the note number after punctuation, and not after the author's name.
Do endnotes go before or after period?
Footnote or endnote numbers in the text should follow punctuation, and preferably be placed at the end of a sentence.
Are endnotes after the period?
When a footnote must be placed at the end of a sentence, add the number after the period. Numbers denoting footnotes should always appear after punctuation, with the exception of one piece of punctuation3—the dash.
