Helena Jahnukainen
Retrieve the information about Helena Jahnukainen and his books on the go! Keep your project up to date with the ISBNdb book database searchable via API with 19 data points per book available.
Kognitio Ja Todellisuus
This is an excerpt from the ISBNdb database. Need more data? Get a FREE 7 day trial and get access to the full database of over 35 million books and all data points including title, author, publisher, publish date, binding, pages, list price, and more.
Get started Free