TY - BOOK AU - Bowden,Witt ED - United States. TI - Technological changes and employment in the United States Postal Service ... December, 1932 T2 - Employment and unemployment series AV - HD8051 .A62 no. 574 PY - 1932/// CY - Washington PB - U.S. Govt. Print. Off. KW - Postal service KW - United States KW - Office management KW - Machinery in the workplace N1 - At head of title: United States Department of Labor. W.N. Doak, secretary. Bureau of Labor Statistics. Charles E. Baldwin, acting commissioner; "Prepared by Dr. Witt Bowden, of the United States Bureau of Labor Statistics."--Acknowledgment; Issued also as House doc. 392, 72d Cong., 2d sess ER -