National Geographic (April 1990)
| Periodical Title | National Geographic |
| Editor | Wilbur E. Garrett |
| Publisher | National Geographic Partners, LLC |
| Copyright Holder | National Geographic Society |
| Format | Magazine |
| Language | English |
| Location | USA |
| Cover Date | 1990-04 |
| Pages / Font | 132 pages |
| Volume Number | 177 |
| Issue Number | 4 |
Added by Supernaut1970 · Last edited by sharpmath