| |||
| hectographic process | |||
| hectohraphic printing; hectograph process; hectographic printing; Hectography | |||
|
гектографирование : 6 phrases in 2 subjects |
| Librarianship | 5 |
| Polygraphy | 1 |
| |||
| hectographic process | |||
| hectohraphic printing; hectograph process; hectographic printing; Hectography | |||
|
гектографирование : 6 phrases in 2 subjects |
| Librarianship | 5 |
| Polygraphy | 1 |