The Engineering Telegraph Code for the Use of Engineers, Contractors, Manufacturers, Merchants, Shippers ... By A.H. Blackburn ... and J. Stevens ... The Code Words Complying with the Telegraph Convention Rules. By G. Ager. (Supplement to the 1892 Edition ... by James Stevens.).

Auteur : Arthur Henry BLACKBURN (and STEVENS (James) M.E.)

Date de publication : 1892

Éditeur : London

Nombre de pages : Non disponible