Conference on the Accuracy of Industrial Measurement of Length and Diameter National Physical Laboratory & National Physical Laboratory (Great Britain). (1963). The accuracy of industrial measurement of length and diameter: Proceedings of the conference held at the National Physical Laboratory on 17th and 18th April, 1962. H.M. Stationery Office.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিConference on the Accuracy of Industrial Measurement of Length and Diameter National Physical Laboratory এবং National Physical Laboratory (Great Britain). The Accuracy of Industrial Measurement of Length and Diameter: Proceedings of the Conference Held at the National Physical Laboratory on 17th and 18th April, 1962. London,: H.M. Stationery Office, 1963.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিConference on the Accuracy of Industrial Measurement of Length and Diameter National Physical Laboratory এবং National Physical Laboratory (Great Britain). The Accuracy of Industrial Measurement of Length and Diameter: Proceedings of the Conference Held at the National Physical Laboratory on 17th and 18th April, 1962. H.M. Stationery Office, 1963.