Dairokkai rōdō tōkei jitchi chōsa kekkahyō
Subtitle: Shōwa 14-nen
Publisher: Naikaku Tōkeikyoku
Published: 1940
Place of publication: [Tokyo]
Language: jpn
Number of pages: 145
Other titles: Dai 6-kai rōdō tōkei jitchi chōsa kekkahyō
Notes: Cover title.

Issued as confidential document.