"Originally published in single magazine form as The Losers 1-12"--Indicia.
"Collecting both The Losers Vol. 1: Ante up and The Losers Vol. 2: Double down"--Back cover.
The Losers. Volumes one & two by Andy Diggle. ISBN 9781401227333. Published by DC Comics in 2010. Publication and catalogue information, links to buy online and reader comments.