Ngo’s Catalogue of Philippine Republic Stamps & Postal Stationeries (Philippine)
Norgeskatalogen (Norway)
Norma Norma [year] – a specialized catalog of Finland postage stamps published annually, tri-lingual (Finnish, Swedish, English)[5] Standard catalogue is published annually, specialized catalogue replaces standard catalogue every few years. Currently in internet https://www.kapylanmerkki.fi/norma/
NVPH Speciale Catalogus (The Netherlands & colonies)
OBP-COB (Belgium)
Phila India (India)
Philex (Germany)
Pofis catalogue (Czechoslovakia)
Postage Stamps Catalogue of the People's Republic of China (China), China Posts and Telecom Press
Prifix (Luxembourg)
Pulko Osmali İmpararatorluğu ve Türkiye Cumhuriyeti Posta Pullari Kataloğu (Ottoman Empire and Republic of Turkey Postage Stamp Catalog)
Pulhan: Türk Pullari Kataloğu (Turkey Postage Stamp Catalog)
Richard Zimmermann Catalog (The joint stamp issues catalog)
^ abcRodger, Michael (May 2, 2011). "Specialized catalogs aid in collecting all periods of China". Linn's Stamp News.
^"Stamps on Colnect". colnect.com. Retrieved 2019-03-07.
^"Find Your Stamps Value - Stamp Catalogue". findyourstampsvalue.com. Retrieved 2022-01-09.
^"Hibernian Catalogue 2009". An Post. 2011. Archived from the original on 2010-09-19. Retrieved 2011-02-06.
^ abKeijo Kortelainen. "A quick review of Norma 2010, a specialized catalog of Finnish stamps". Stamp Collecting Blog. Archived from the original on October 29, 2010. Retrieved February 6, 2011.
^"Philatelic Distributors Limited – Established 1968". Lenjury.co.nz. Retrieved 2022-01-06.