Soren nōgyō ni okeru rōdō seisansei to yojō rōdōryoku (yōshi)
Contributors: Minami Manshū Tetsudō Kabushiki Kaisha. Chōsabu
Publisher: Minami Manshū Tetsudō Kabushiki Kaisha Chōsabu
Published: 1940
Place of publication: [Dairen]
Language: jpn
Number of pages: 34
Subjects: Agricultural productivity
Notes: Prepared by Hirakawa Hiroyuki. Cf. Pref.

Confidential document (stamped).