Skagerrak (Submarine Classics by D.M. Ulmer)

A highly prized intelligence find rests on the bottom of Skagerrak Strait: a Soviet Golf II class submarine equipped with three nuclear-tipped ballistic missiles. All that is needed is to find this needle in the haystack, lift a thirty-five hundred ton vessel from the ocean bottom unnoticed and secure it in a surface ship designed by the CIA for this purpose.  A near impossible task, nonetheless a band of U.S. submariners agree to take it on.