Stamps of the World 1975 : fortieth edition : an illustrated and prices guide to the postage stamps of the whole world, excluding changes of paper, perforation, shade and watermark : lists over 174,600 stramps over 35,200 illustrations - Gibbons, Stanley (London & Derby : Stanley Gibbons Publications Ltd., 1974)
Na k. tyt. pieczątka: Zbiory M. Żurowski Allan Poznań-Szkocja.
Keywords: Filatelistyka -- 20 w. -- katalog; Kolekcjonerstwo -- 20 w. -- katalog