Welck, S. F. (2000). Crossing borders, stretching boundaries: The Bose-Einstein Lectures on Indo-German co-operation in science, technology and environment. Manohar.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিWelck, Stephan F. Crossing Borders, Stretching Boundaries: The Bose-Einstein Lectures on Indo-German Co-operation in Science, Technology and Environment. Manohar, 2000.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিWelck, Stephan F. Crossing Borders, Stretching Boundaries: The Bose-Einstein Lectures on Indo-German Co-operation in Science, Technology and Environment. Manohar, 2000.
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