Very much so.![]()
[T]he use of apostrophes with initialisms like “learn your ABC’s and “mind your P’s and Q’s” is now so universal as to be acceptable in almost any context.
Huh? What authority? And I didn't use an apostrophe? Or are you saying I should have done?Except that every authority accepts apostrophes to pluralise acronyms and initialisms?
Except that every authority accepts apostrophes to pluralise acronyms and initialisms?
http://www.wsu.edu/~brians/errors/acronyms.html
http://en.wikipedia.org/wiki/Acronym#Representing_plurals_and_possessives