Llwytho...
Universe /
| Prif Awdur: | |
|---|---|
| Fformat: | Printed Book |
| Iaith: | English |
| Cyhoeddwyd: |
New York :
W.H. Freeman,
c1988.
|
| Rhifyn: | 2nd ed. |
| Pynciau: |
| Disgrifiad Corfforoll: | xx, 634 p. : ill. (some col.) ; 27 cm. |
|---|---|
| ISBN: | 0716719274 |