Ulrich's international periodicals directory: a classified guide to current periodicals, foreign and domestic / Volume 1, Scientific, technical & medical
| Awduron Eraill: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | Spanish English |
| Cyhoeddwyd: |
New York:
R.R. Bowker Company,
1965.
|
| Rhifyn: | Eleventh edition |
| Pynciau: |