APA (7th ed.) Citation

International Institute of Philosophy & Wright, G. H. v. (1972). Problems in the theory of knowledge. Nijhoff.

Chicago Style (17th ed.) Citation

International Institute of Philosophy and G. H. von Wright. Problems in the Theory of Knowledge. The Hague: Nijhoff, 1972.

MLA (9th ed.) Citation

International Institute of Philosophy and G. H. von Wright. Problems in the Theory of Knowledge. Nijhoff, 1972.