Pāto taimu rōdō jittai chōsa kekka hōkokusho
Publisher: Tochigi-ken Shōkō Rōdōbu; Tochigi-ken Shōkō Rōdōbu Rōseika
Published: 1987
Place of publication: Utsunomiya-shi
Language: jpn
Number of pages: 193