By Hinchen, John D..
London Methuen, and Science Paperbacks 1969 .
vii, 116 p. , Distributed in U.S.A. by Barnes & Noble. 23 cm..
0416466702

By Seel, Fritz.
[London] Methuen 1963 .
vii, 112 p. , Translation of Atombau und chemische Bindung. 19 cm..

By Tinbergen, Niko.
[London] Methuen 1195 .
xi, 150 p.