London's buses; the stofy of a hundred years,

by Sommerfield, Vernon
[London] : Pub. by the St. Catherine press for London's Underground 1933

The wheel ...

by Sommerfield, Vernon
London, Nicholson & Watson, limited, 1938

English railways, their beginnings, development and personalities,

by Sommerfield, Vernon
London, New York [etc.] T. Nelson & sons, ltd. 1937

Speed, space and time,

by Sommerfield, Vernon
London, New York [etc.] T. Nelson and sons, ltd. 1935