00565nam a2200169Ia 4500 190328s9999||||xx |||||||||||||| ||und|| 56-8390 NITIL NITIL 21st 331.1 S855T Stigler, George J Trends in employment in the service industries George J Stigler Princeton Princeton University Press 1956 xviii, 167p. National bureau of economic research;no. 59 Labor supply; Employment (economic theory); Service Industries workers BKS 2911 2911 0 0 DDC 0 0 NITIL NITIL 2019-04-02 0 331.1 S855T 16573 2019-04-02 00:00:00 2019-04-02 BKS