Hardcover
ISBN: 978-92-3-001800-9
ISBN-10: 92-3-001800-7
Unesco ยท 1980
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Hardcover
ISBN: 978-92-3-001800-9 ISBN-10: 92-3-001800-7 Unesco ยท 1980 |
| See also: | ||
| 1989 | Hardcover | Statistical Yearbook, 1985-1986 |
| 1989 | Paperback | Statistical Yearbook, 1985-1986 |