Catalogue of the specimens of Dermaptera Saltatoria and supplement to the Blattarioe in the collection of the British Museum. By Francis Walker.
LondonPrinted for the Trustees of the British Museum1869-70
Public domain. The BHL considers that this work is no longer under copyright protection.
Evidence reported by Internet Archive biblio tool for item catalogueofspeci01brituoft on March 13, 2008: no visible notice of copyright; stated date is 1869.