Arkeil, Vincent Hubert. Case study data on productivity and factory performance. Diesel engines. - Washington : U.S. Govt. Print. Off., 1955. - iii, 177 p. : ill. ; 26 cm. - BLS report ; no. 86 . LCCN: l 55000279 Subjects--Topical Terms: Labor productivity--United States. LC Class. No.: HD8051 / .A7876 no. 86