*Calendar designation shall be either "BC" or "AD" whenever there may be ambiguity — AD 1957 or 3400 BC, but 2 January 201 AD
*Acronyms composed of initials shall omit periods — thus USA, FAS, PhD
*Footnotes, if not too numerous, shall use symbols — * † ‡ ** †† ‡‡
*Footnotes go at the bottom of columns, not grouped at the bottom of the page.
*Endnotes are referenced by numerals within square brackets in text — [1], not <sup>1</sup>
*Endnotes are listed by numerals followed by a closing square bracket — 1], not [1]