Ekerholm, H. Cultural meanings of wood gas automobile fuel in Schweden, 130-1945: Helena Ekerholm. Past and present energy societies : how energy connects politics, technologies and cultures.(2012).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEkerholm, Helena. "Cultural Meanings of Wood Gas Automobile Fuel in Schweden, 130-1945: Helena Ekerholm." Past and Present Energy Societies : How Energy Connects Politics, Technologies and Cultures.(2012) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रEkerholm, Helena. "Cultural Meanings of Wood Gas Automobile Fuel in Schweden, 130-1945: Helena Ekerholm." Past and Present Energy Societies : How Energy Connects Politics, Technologies and Cultures.(2012), .
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.