Blalock, Hubert M. <br/><br/>
An introduction to social research / 
Hubert M. Blalock, Jr. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  c1970. 
 - 120 p. 
 - Prentice-Hall general sociology series .
<br/><br/><label>ISBN: </label>0134968360 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research.