Não informado. (2012). The Bulletin of the Society of Cartographers. Society of Cartographers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. The Bulletin of the Society of Cartographers. Middlesex, Inglaterra: Society of Cartographers, 2012.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. The Bulletin of the Society of Cartographers. Society of Cartographers, 2012.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.