APA (7th ed.) Citation

Häkli, E. (1990). A.E. Nordenskiöld: A scientist and his library (2nd unrevised ed.). Helsinki University Library.

Chicago Style (17th ed.) Citation

Häkli, Esko. A.E. Nordenskiöld: A Scientist and His Library. 2nd unrevised ed. Helsinki: Helsinki University Library, 1990.

MLA (9th ed.) Citation

Häkli, Esko. A.E. Nordenskiöld: A Scientist and His Library. 2nd unrevised ed. Helsinki University Library, 1990.