Mass spectra and isotopes

by F.W. Aston ...

New York : Longmans, Green & Co. ; London : E. Arnold & Co., [1942]

xii, 276 págs. incl. tables, diagrs. : XII pl. on 8 h. ; 22 cm.

"Second edition, 1942."

The first edition, issued as a revision of the author's "Isotopes," 1924, was published in 1933.