Earl, Boyd. <br/><br/>
Introduction to probability :  a programmed unit in modern mathematics / 
Boyd Earl.     
 - New York :  McGraw-Hill,  1963. 
 - xii, 259 p. :  ill. ;  24 cm. 
<br/><br/>Bibliography: p. x. 
<br/><br/><label>LCCN: </label>63014577 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Probabilities--Programmed instruction.