National Industrial Conference Board. Hours of work as related to output and health of workers: boot and shoe industry. Boston, Mass.: The Board. c1918; Secured Transactions; vii, 76 p. 23 cm.
National Industrial Conference Board. Hours of work as related to output and health of workers: boot and shoe industry. Boston, Mass.: The Board. c1918; Secured Transactions; vii, 76 p. 23 cm.
Leave a Reply