- ETTN
- abbr.Estation.com Inc NASDAQ
Dictionary of abbreviations. 2012.
ETTN
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International Standard Book Number — ISBN redirects here. For usage of ISBNs in Wikipedia, see Wikipedia:ISBN. A 13 digit ISBN, 978 3 16 148410 0, as represented by an EAN 13 bar code. The International Standard Book Number (ISBN) is a unique[1][2 … Wikipedia
