Tiedon värikäs maailma
Subtitle: nykyaikainen tietosanakirja
By: toimitus, Matti Hakala.
Contributors: Hakala, Matti.
Publisher: Uusi kirjakerho
Published: 1972
Place of publication: Helsinki
Language: fin
Number of pages: 21
Subjects: Encyclopedias and dictionaries, Finnish.
Notes: Vol. 21 includes index.