Tokio Hirano Judobook

Managed to get a copy of booklet by Tokio Hirano; "Judo : Tai-Otoshi" by Hirano Tokio (1922-1993), Antverpen, Netherlands, P.V.B.A. "LUCKY", ND, 36p, PB, 244 x 148 x 3
The booklet has the same information (text) in English, French, German and Dutch. i.e the text accompanying pictures is shown in four languages.

What baffles me is the entry in Online publiekscatalogus Koninklijke Bibliotheek
http://opc4.kb.nl/DB=1/CMD?TRM=Hirano%20Tokio&SRT=YOP&IKT=1016&ACT=SRCHA&lng=en&op=Search
where we find

Titel: Judo technique / Tokio Hirano

Deel / delen: No. 1 (a): [Tai-Otoshi; Ipon Seoi Nage; Morote-Seoi-Nage; O-Soto-Gari; Jiu-Jitsu]

Auteur: Tokio Hirano

Jaar: [s.a.]

Uitgever: [Brugge : Judo Centrum]

Omvang: 23 p

Illustratie: ill

Formaat: 22 cm

even the basic information differs! How come? I recall a claim that only a single booklet has been written by Tokio Hirano!