United States. National Bureau of Standards. (1951 : Washington, D.C.). Proceedings of the NBS semicentennial symposium on gravity waves held at the NBS on June 18-20, 1951.

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United States. National Bureau of Standards. (1951 : Washington, D.C.).

Proceedings of the NBS semicentennial symposium on gravity waves held at the NBS on June 18-20, 1951.

Waves.

Gravity waves.