Consider that I looked up some data, more specifically credit ratings for a sovereign, in the Bloomberg and the Thomson Reuters terminal for my thesis:
The sovereign is rated Aaa by Moody's, AAA by Standard and Poor's, and AAA by Fitch (Bloomberg).
What is the best practice to cite a computer terminal as the source after using data from that terminal? I mean there is no specific author or authoring date other than "Bloomberg" and the date that I've accessed it. And just stating "Bloomberg" as above looks odd.
This question is not directly related to any citation style, however I'm using BibTeX with the APA style for my thesis.