Health and demography
| প্রধান লেখক: | |
|---|---|
| বিন্যাস: | গ্রন্থ |
| ভাষা: | English |
| প্রকাশিত: |
[Washington]
U. S. Dept. of Health, Education, and Welfare, Public Health Service, Bureau of State Services, National Office of Vital Statistics
1956.
|
| মালা: | U. S. Public Health Service. Publication
no. 502 |
| বিষয়গুলি: |