| Labor unions - 1968 - 356 pages
Includes separately paged "Junior union section." | |
| Labor unions - 1967 - 696 pages
Includes separately paged "Junior union section." | |
| Labor unions - 1966 - 720 pages
Includes separately paged "Junior union section." | |
| Labor unions - 1966 - 352 pages
Includes separately paged "Junior union section." | |
| Labor unions - 1965 - 694 pages
Includes separately paged "Junior union section." | |
| Labor unions - 1965 - 348 pages
Includes separately paged "Junior union section." | |
| Labor unions - 1964 - 690 pages
Includes separately paged "Junior union section." | |
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