Ei-Wa taiyaku kokusai tsūshinsho
Subtitle: Shingō hen
Publisher: Un'yu Tsūshinshō Kaiun Sōkyoku
Published: 1933
Place of publication: [Tokyo]
Language: jpn
Number of pages: 560
Subjects: Cipher and telegraph codes; Merchant marine; Signaling
Other titles: Kokusai tsūshinsho. Shingō hen.