Guide to the British fresh-water fishes exhibited in the Department of Zoology, British Museum (Natural History).
London :Printed by order of the Trustees of the British Museum,1917.
Public domain. The BHL considers that this work is no longer under copyright protection.
Evidence reported by Internet Archive biblio tool for item guidetobritishfr00brituoft on March 11, 2008: no visible notice of copyright; stated date is 1917.