TY  - BOOK
AU  - Aston,Francis William
TI  - Mass spectra and isotopes
U1  - 541.2 
PY  - 1960///
CY  - London
PB  - E. Arnold & Co.
KW  - Isotopes
KW  - Spectrum analysis
N1  - "Second edition, 1942."; The first edition, issued as a revision of the author's "Isotopes," 1924, was published in 1933; Include index
ER  -