matt kennedy answered question 5/12/2009 What Is The Proper Way To List A Post Office Box Abbreviation? Is It P.O. Box Without A Space Or P. O. Box With A Space? ANY abbreviation of multiple words MUST have no space between the letters but SHOULD have full-stops between each (unless it's an acronym like AWOL - Away With Out Leave, or a Pseudo-acronym, such as IBM, … Read more
