Robison, Gerson B.,  1909- <br/><br/>
An introduction to mathematical logic/ 
Gerson B. Robison. 
 - Englewood Cliffs, N.J.:  Prentice-Hall,  [1969]. 
 - xi, 212 p.:  24 cm. 
<br/><br/><label>LCCN: </label>69014806 
<br/><br/><label>Nat. Bib. No.: </label>GB69-13307 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic, Symbolic and mathematical.<br/>Logica Matematica (Textos Introdutorios)
<br/><br/><label>Dewey Class. No.: </label>511.3  / R666i