Sanchi no tenkai to sanchi kōdō
Subtitle: kōnōritsu shisetsu engei ni kansuru sōgō kenkyū chōsa hōkokusho
Contributors: Yamamoto, Katsunari; Chūgoku Nōgyō Shikenjō. Nōgyō Keieibu
Series: Chūgoku nōkei shiryō -- dai 61-shū
Publisher: Chūgoku Nōgyō Shikenjō Nōgyō Keieibu
Published: 1977
Place of publication: [Fukuyama-shi]
Language: jpn
Number of pages: 99
Notes: Cover title.

Written by Takahashi Masao and Yamamoto Katsunari. Cf. Pref.