Raise The Titanic! was the 3rd novel by Clive Cussler and was published in 1976.
It was originally the 3rd of the Dirk Pitt books but later became the 4th installment as a later release – Pacific Vortex! – was set earlier chronologically.
This novel was also adapted for the big screen as a movie starring Richard Jordon as Dirk Pitt.
Raise The Titanic! book description
The President’s secret task force has developed an unprecedented defensive weapon that relies on an extremely rare radioactive element – and Dirk Pitt has followed a twisted trail to a secret cache of the substance.
Now, racing against brutal storms, Soviet spies, and a ticking clock, Pitt begins his most thrilling mission – to raise from its watery grave the shipwreck of the century…