秘められた昭和史
Subtitle: senʻun no naka no tōhon seisōki
By: Hayashi Masayoshi hen
Publisher: Kashima Kenkyūjo Shuppankai
Published: 1965
Place of publication: Tōkyō
Language: jpn
Number of pages: 370
Subjects: Foreign relations
Other titles: Himerareta Shōwa shi