Alfred Tarski
Undecidable theories
Introduction to logic and to the methodology of deductive sciences
Collected Papers
Collected Papers : Volume 1
Collected Papers : Volume 2
Collected Papers : Volume 3
Collected Papers : Volume 4
Einführung in die Mathematische Logik
The axiomatic method
A formalization of set theory without variables
A formalization of set theory without variables
Alfred Tarski. Collected Papers Volume 4 1958-1979