Bradley, Jack I. <br/><br/>
Basic statistical concepts :  a self-instructional text / 
[by] Jack I. Bradley [and] James N. McClelland. 
 - Chicago :  Scott, Foresmen,  [1963] 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics -- Programmed instruction.--Statistics -- Programmed instruction.