TY  - BOOK
ED  - United States.
TI  - Mass spectroscopy in physics research: Proceedings of the NBS semicentennial symposium on mass spectroscopy in physics research, held at the NBS on September 6, 7, and 8, 1951
T2  - National Bureau of Standards circular
U1  - 543.51 Es82 
PY  - 1953///
CY  - Washington
KW  - ANÃLISIS DE ESPECTRO
KW  - ESPECTRÃMETRO DE MASAS
KW  - ÃPTICA DE ELECTRONES Y IONES
N1  - Indice y bibliografÃ­a presentes
ER  -