should one use a period or full stop at the end of an abbreviation

According to an article on about.com, an abbreviation is a shortened form of a word or phrase, such as Jan for January; Dr for Doctor; Mrs for Missus etc. The abbreviated form of the word abbreviation is abbr. or, less commonly, abbrv. or abbrev. In British English, which we favour, the usage of abbreviations generally favours omitting the period (or full stop) in […]