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Report on Latin American travel concerning Latin American standards for pipe and tubing and technical assistant (Colombia)::part I, November 5 - December 3, 1965; part II, November 28 - December 3, 1965, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NBS.RPT.9046
(Accessed December 9, 2024)