Smiley Versus Karla (1982), by John le Carré, originally published as The Quest for Karla, is an omnibus edition of three novels concerning George Smiley's fight against Karla, his counterpart in Tinker Tailor Soldier Spy (the Soviet KGB). The "Karla Trilogy" includes:

First US edition (publ. Knopf) under original title

See also edit