Number 1-9 write out, from 10 on use numbers unless starting a sentence. Apostrophe indicates verb to be . We use it too often. But I was affected by it. Avoid using ly on numbers.
Punctuation goes inside quotes unless it is a semicolon .
Quoting within a quote, use single quote marks. Publishers have a guide, review that journal, look at their style. Three dots and period at end. No difference in space . Footnote - Smith, Marjorie J. Working with Students .