 | How to Know the Grasshoppers, Cockroaches and their Allies | Paperback |
 | The Grasshoppers, Crickets, And Related Insects Of Canada And Adjacent Regions. Ulonata: Dermaptera, Cheleutoptera, Notoptera, Dictuoptera, Grylloptera and Orthoptera | Monograph |
 | Cahier d'identification des Orthoptères de France, Belgique, Luxembourg & Suisse | Hardback + CD |
