United States. National Bureau of Standards & United States. National Bureau of Standards. Scientific papers of the Bureau of Standards. U.S. Govt. Print. Off.
Chicago-viite (17. p.)United States. National Bureau of Standards ja United States. National Bureau of Standards. Scientific Papers of the Bureau of Standards. Washington: U.S. Govt. Print. Off.
MLA-viite (8. p.)United States. National Bureau of Standards ja United States. National Bureau of Standards. Scientific Papers of the Bureau of Standards. U.S. Govt. Print. Off.
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