World of the elderly
| ISSN | 1003-4846 |
| Organizer: | he bei sheng wei lao gan bu ju he bei sheng lao ling gong zuo wei yuan hui he bei sheng min zheng ting |
| Publisher: | he bei sheng wei lao gan bu ju |
| Description: | Spring Subway ancient and modern life, people living old world of work (Translated by machine.) |