Opas Suomen historian lähteistöön
By: Erkki Markkanen, Toivo Nygård, Heikki Rantatupa.
Contributors: Nygård, Toivo, joint author.; Rantatupa, Heikki, joint author.
Publisher: Otava
Published: 1976
Place of publication: Helsinki
Language: fin
Number of pages: 133
Subjects: Finland -- History -- Sources.