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Evaluation du vendeur
Edité par HMSO, London, 1949
Vendeur : Ground Zero Books, Ltd., Silver Spring, MD, Etats-Unis
Etat : fair to good. 43, wraps, figures, tables, appendix, separate errata sheet, pgs slightly darkened, some soiling & discoloration to covers. Corners of covers and of a few pages bent. Instructions for decoding and plotting weather messages giving surface observations from land stations and ships.