| aba.org.uk | Antiquarian Booksellers Association |
| professionaldirectors.co.uk | Professional Directors |
| seafish.org | Sea Fish Industry Authority (SFIA) |
| nvva.nl | Antiquarische Boeken En Tweedehands, Nvva Nederlandse Vereeniging Van Antiquare |
| ilab-lila.com | International League of Antiquarian Booksellers |
| abebooks.com | Advanced Book Exchange |
| abaa.org | Antiquarian Booksellers Association of America |
| retreaders.org.uk | Retread Manufacturers Association |
| aeo.org | Association of Exhibition Organisers (AEO) |
| aemt.co.uk | Association of Electrical and Mechanical Trades (AEMT) |
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