Hoppōshi nyūmon
Subtitle: Nihonjin to Roshiajin no daitankenshi
Publisher: Dentō to Gendai Sha; Gendai Jānarizumu  Shuppankai hatsubai
Published: 1974
Place of publication: Tokyo
Language: jpn
Number of pages: 253
Subjects: Japan -- Relations -- Russia; Russia -- Relations -- Japan; Okhotsk region -- History; Hokkaido (Japan) -- History