National Center for Health Statistics (Issue Year). Data File Documentations, Natality, Data Year (machine readable data file and documentation, CD-ROM Series Series Number, No. No.), National Center for Health Statistics, Hyattsville, Maryland.
where the italicized fields are filled in with the appropriate information below:
| Data Year | Issue Year | Series Number | No. |
| 1991 | 1997 | 21 | 5 |
| 1992 | 1996 | 21 | 2 |
| 1993 | 1997 | 21 | 3 |
| 1994 | 1997 | 21 | 4 |
| 1995 | 1998 | 21 | 6 |
A published table derived from this data should have a cite like this:
Source: National Center for Health Statistics (span of years used)
The published material should also include a disclaimer that credits any analyses, interpretations, or conclusions reached to the author (recipient of the data file) and not to NCHS, which is responsible only for the initial data.