I believe the SAS pocket survival manual is still available (though out of print), try Barnes & Noble, they've got a pretty good used/out of print collection.

Troy

P.S. the author is John "Lofty" Wiseman

After catching up with other posts, I see this is totally covered. Another great one is " Survival, a manual that could save your life " by Chris Jankowski...find it at WSI... www.wildernesssurvival.com
By the way, I have no affilliation with Chris or WSI, but in my oppinion, it's the best single survival manual out there.