Report of the director : for the period 1st November 1975-28th February 1978 /
Wedi'i Gadw mewn:
| Awdur Corfforaethol: | |
|---|---|
| Awduron Eraill: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Sheffield :
University of Sheffield, Centre for Research on User Studies,
[1978].
|
| Cyfres: | British Library research & development reports ;
no. 5446. |
| Pynciau: |
CARM 1 Store
| Rhif Galw: |
A2:AI20H0 F01349 |
|---|---|
| Copi 1 | Ar gael Gwneud Cais |