APA (7th ed.) Citation

Johnson, R. H. (1972). The concept of existence in the concluding unscientific postscript. Nijhoff.

Chicago Style (17th ed.) Citation

Johnson, Ralph Henry. The Concept of Existence in the Concluding Unscientific Postscript. The Hague: Nijhoff, 1972.

MLA (9th ed.) Citation

Johnson, Ralph Henry. The Concept of Existence in the Concluding Unscientific Postscript. Nijhoff, 1972.