The Foundations of Arithmetic: A - Paperback, by Frege Gottlob - Good

Sets, Logic and Maths for Computing - Paperback, by Makinson David - Very Good

Mathematics and Logic by Mark Kac Paperback Book, 1969 1st Printing B220

Symbolic Logic by Irving M. Copi (1979, Hardcover)

VTG Computing and Logic: Mathematics and Language, Satty/Blakeley/Colbert TPB

Dover Books on Mathematics Ser.: Foundations of Mathematical Logic by Haskell B.

Logic

Elementary Logic Of Science And Mathematics P H nidditch 1960