One of the widely used dictionaries is The Advanced Learner's Dictionary of Current English of which you see the dust jacket of the 2nd edition.
Neither the first nor second edition contain American English pronunciations. The first edition indicating them is the third of 1974. In the acknowledgment section written by the editor A S Hornby we read that it was Jack Windsor Lewis,
|Jack Windsor Lewis and Albert Sidney Hornby in 1974 (photo credit: JWL)|
Matters become even less felicitous with words such as curry and furry. For curry we find /kʌrɪ US: kɜɪ/ - the reader must transform this to /kɜrɪ/ - , but in the case of furry the learner is told to pronounce it /fɜrɪ/.Don't get me wrong! There's logic in this. All I'm saying is that it is less comfy than what we are used to these days. Maybe Jack can tell us more about the editorial motives behind this policy.
Any changes in the fourth edition? More on this topic in a future post.
Update: See also the latest article by Jack on phonetics in advanced learner's dictionaries.