Paperback
ISBN: 978-0-11-513492-0
ISBN-10: 0-11-513492-1
H.M.S.O ยท 1969
| See also (possibly by other authors): | ||
| 1991 | Paperback | International Code of Signals 1969 |
| 1988 | Paperback | International Code of Signals 1969 |
| 1986 | Paperback | International Code of Signals 1969 |
| 1985 | Paperback | International Code of Signals 1969 |