Okamura no OA senryaku
Subtitle: chiisana honsha wa ikani jitsugenshita ka
By: Okamura Seisakujo Keiei Sōgō Shisutemu Kenkyūjo cho.
Publisher: Daiyamondosha, Shōwa 57 [1982] (Shōwa 58 [1983] printing)
Published: 1982
Place of publication: Tōkyō
Language: jpn
Number of pages: 221