The Matarese Circle, by Robert Ludlum
Paperback. Very good condition.
Only two rival spies - and one mysterious woman - can stop them: Scofield, CIA, and Talaniekov, KGB. They share a genius for espionage - and a life of terror and explosive violence. Sworn enemies, they have vowed to terminate each other - yet now they must become allies. Because only they possess the brutal skills and ice-cold nerves vital to destroy an international circle of killers, the Matarese.