| ID | 287761 |
| Title Proper | Children of working mothers in Philadelphia |
| Language | ENG |
| Author | Beyer, Clara Mortenson |
| `In' analytical Note | In Bolt, A. Richard: Causes and Prevention of Neonatal Mortality. 1929. --(L9C1:5191:2.&3 F9) |
| Journal Source | In Bolt, A. Richard: Causes and Prevention of Neonatal Mortality. 1929. --(L9C1:5191:2.&3 F9) |
| Classification Number | Y11:4:670gX:915 |