Bōkū mondō
By: [chosha Takara Tarō] ; Tsugaru Yōsai Shireibu kanshū
Publisher: Teikoku Zaigō Gunjinkai Hakodate-shi Daini Bunkai
Published: 1937
Place of publication: Hakodate-shi
Language: jpn
Number of pages: 113
Subjects: Air defenses