TY  - BOOK
AU  -  Lazarsfeld,Paul F.
TI  -  Organizing educational research : :  an exploration / 
U1  -  378 LAZ 
PY  - 1964///
CY  -  New Jersey : 
PB  -  Prentice-Hall, 
N1  -  Includes bibliographical references (p. 107-113)
ER  -