A training course in sanitation for food service workers a series based on lectures
| Prif Awdur: | |
|---|---|
| Awduron Eraill: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Chicago
Institutions Magazine
c1969.
|
| Rhifyn: | New and rev. ed. |
| Pynciau: |