Não informado. (1903). Foundry Trade Journal. Fuel and Metallurgical Journals.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Foundry Trade Journal. Redhill, Inglaterra: Fuel and Metallurgical Journals, 1903.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Foundry Trade Journal. Fuel and Metallurgical Journals, 1903.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.