SpringerLink (Online service). (1955). Freedom and restriction in science and its aspects in society: Congress promoted by the Netherlands University for the discussion of the subject : The Hague, 17 and 18 September, 1954. Martinus Nijhoff.
Chicago Style (17th ed.) CitationSpringerLink (Online service). Freedom and Restriction in Science and Its Aspects in Society: Congress Promoted by the Netherlands University for the Discussion of the Subject : The Hague, 17 and 18 September, 1954. The Hague: Martinus Nijhoff, 1955.
MLA (9th ed.) CitationSpringerLink (Online service). Freedom and Restriction in Science and Its Aspects in Society: Congress Promoted by the Netherlands University for the Discussion of the Subject : The Hague, 17 and 18 September, 1954. Martinus Nijhoff, 1955.