Multiple-Conclusion Logic by D. J. Shoesmith, T. J. Smiley - 9780521093323

Buzaglo - Logic of Concept Expansion - paperback or softback - G555z

Armstrong - Logic of Slavery - paperback or softback - G555z

Martin - Systems of Logic - paperback or softback - G555z

Devlin - Logic and Information - paperback or softback - G555z

Boolos - Logic of Provability - paperback or softback - G555z

O'Hear - Logic Thought and Language - paperback or softback - G555z

Johnson - Logic Part 1 - paperback or softback - G555z