TY  - BOOK
AU  - Hart,Robert A.
TI  - Working time and employment
SN  - 0043311091 (alk. paper)
U1  - 331.125 
PY  - 1987///
CY  - Boston
PB  - Allen & Unwin
KW  - Hours of labor
N1  - Includes index; Bibliography: p. 277-286
ER  -