| Editorial: | Her Majesty's Stationary Office. |
| Ciudad: | London. |
| Año: | 1954. |
| Edición: | Third impression. |
| Medidas: | 1966. |
| Paginación: | viii, 54pp. |
With plates and folding texts and diagrams.
Softback, publisher's wrappers.
Original staples rusting somewhat, but very good copy.