Simplified practice /

Eitemau Tebyg

• Industrial psychology in practice /
  gan: Welch, Henry John, 1872-
  Cyhoeddwyd: (1932)
• Work study practice : report.
  Cyhoeddwyd: (1971)
• Method of directing the work of government employees : hearings before the Committee on Labor, House of Representatives, sixty-fourth Congress, first session on H.R. 8665, a bill to regulate the method of directing the work of government employees /
  Cyhoeddwyd: (1916)
• Work simplification /
  gan: Nadler, Gerald
  Cyhoeddwyd: (1957)
• The efficiency of business enterprises.
  gan: Amey, Lloyd R.
  Cyhoeddwyd: (1969)