Uitgevers van catalogi Facit stamp catalogue, ZwedenAFA stamp catalogue, DenemarkenIcelandic stamps catalogi 1944-1999Icelandic stamps catalogi 2000-2019Icelandic Stamps catalogi 1873-2019 Yvert et Tellier, Franse catalogiMICHEL stamp catalogi, DuitsNVPH, Nederland & Overzeese gebiedenScott stamp catalogi, USAStanley Gibbons stamp catalogue, Great BritainUNIFICATO stamp catalogi, ItalyThomas Graungaard’s Specialised Stamp Catalogi van IJsland Leonard H. Hartmann books on philately, USAVACCARI books on philately, ItalyZumstein catalogi, Zwitserland Filatelistiche bibliotheken & musea Bath Postal Museum (UK)The Danish Postal MuseumThe Swedish Postal MuseumBondsbibliotheek NederlandPhilatelistische Bibliothek Hamburg e.VPhilatelistische Bibliothek MünchenThe British Postal Museum & ArchiefAmerican Philatelic Research Library (APRL)Rocky Mountain Philatelic Library, USAThe Western Philatelic Library, USASingapore Philatelic Museum
