TY  - BOOK
AU  - Kreps juanita.
AU  - Clark, robert.
TI  - Sex,Age & Work: the changing composition of the labor force 
SN  - 0-8018-1807-9
U1  - 331.5 KRE 
CY  - Baltimore & London
PB  - John Hopkins University Press
N1  - Includes bibliographical references and index
ER  -