@book{justhis3860,
           title = {Guide du candidat officier de police, sous-officier de gendarmerie, agent sp{\'e}cial et autres agents de police},
          author = {F{\'e}lix Delcourt and Albert Gilsen},
         address = {Bruxelles},
            year = {1922},
        keywords = {guide gendarmerie rijkswacht police politie},
             url = {http://www.just-his.be/eprints/3860/}
}