Saisei kanō enerugī dōnyū kanōsei chōsa (chikanetsu riyō)
Subtitle: Heisei 21-nendo "midori no bunken kaikaku" suishin jigyō hōkokusho
Publisher: Nagano-ken
Published: 2011
Place of publication: [Nagano-shi]
Language: jpn
Number of pages: 110
Subjects: Heat pumps; Design and construction
Notes: Cover title.