Probability Theory: A Concise Course (Dover Books on Mathematics)

Mathematical Logic: A First Course (Dover Books on Mathematics)

A Course on Group Theory (Dover Books on Mathematics)

Information Theory (Dover Books on Mathematics)

Harmonic Analysis and the Theory of Probability (Dover Books on Mathematics)

Graph Theory (Dover Books on Mathematics)

Information Theory and Statistics (Dover Books on Mathematics)

Mathematical Foundations of Information Theory (Dover Books on Mathematics)