.: 3. Bruxelles, Bibliothèque Royale Albert I, 1975, in-8°, frontispiece + 114 + (2) pp, 36 ills. (a few in red and black), index, stiff printed wrapper. Text in French. Publ. on the occasion of an exhibition at the Royal Library, lists187 items.
.: 2. Brussel, Koninklijke Bibliotheek Albert I, 1975, in-8°, 114 pp, many bw facsimiles, 187 items, index, sewn, orig.stiff wrapper. (Text in Dutch, Royal Library Brussels).
.: 2. Bruxelles, Bibliothèque Royale Albert I, 1975, in-8°, frontispiece + 114 + (2) pp, 36 ills. (a few in red and black), index, stiff printed wrapper. Text in French. Publ. on the occasion of an exhibition at the Royal Library, lists187 items.