TY  - BOOK
AU  - Nat. Bur.of Std. Semi. Sym. on Grv.Waves held at NBS on 1951
TI  - Proceedings: N.B.S.Circular No.521, issued Nov.28, 1952
U1  - 532.59 
PY  - 1952///
CY  - Washington
PB  - U.S.Govt. Print.Off.
ER  -