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Chicago-viite (17. p.)National Register of Foreign Collaborations (India) ja India. Dept. of Scientific & Industrial Research. Technology in Indian Two-for-one Twister Industry: A Status Report Prepared Under the National Register of Foreign Collaborations. New Delhi: Govt. of India, Dept. of Scientific & Industrial Research, Ministry of Science & Technology, 1993.
MLA-viite (8. p.)National Register of Foreign Collaborations (India) ja India. Dept. of Scientific & Industrial Research. Technology in Indian Two-for-one Twister Industry: A Status Report Prepared Under the National Register of Foreign Collaborations. Govt. of India, Dept. of Scientific & Industrial Research, Ministry of Science & Technology, 1993.