By Cunliffe, John William.
New York | London D. Appleton-Century 1936 .
ix, 414 p. , "Companion volume... Leaders of the Victorian revolution, by J. W. Cunliffe." 23 cm..

By Cunliffe, John William.
Hamden, Conn. Archon Books 1965 .
iv, 155 p. , Reprint of the work first published in 1893.