White, Henry. Machinery and labor. - [Philadelphia, American Academy of Political and Social Science, 1902] - 221-231 p. 24 cm. - Annals of the American Academy of Political and Social Science, v. 20, no. 1 . LCCN: cd 17000122 Subjects--Topical Terms: Machinery in the workplace. LC Class. No.: H1 / .A4 vol. 20, no. 1