International City Management Association & National Center for Productivity and Quality of Working Life. (1976). Guide to productivity improvement projects (3rd ed.). The Association for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Chicago-Zitierstil (17. Ausg.)International City Management Association und National Center for Productivity and Quality of Working Life. Guide to Productivity Improvement Projects. 3rd ed. Washington: The Association for sale by the Supt. of Docs., U.S. Govt. Print. Off, 1976.
MLA-Zitierstil (9. Ausg.)International City Management Association und National Center for Productivity and Quality of Working Life. Guide to Productivity Improvement Projects. 3rd ed. The Association for sale by the Supt. of Docs., U.S. Govt. Print. Off, 1976.