APA (7th ed.) Citation

Clark, J. M. (1951). Economic means, to what ends?: A problem in the teaching of economics. [publisher not identified].

Chicago Style (17th ed.) Citation

Clark, John Maurice. Economic Means, to What Ends?: A Problem in the Teaching of Economics. [New Haven, Conn.]: [publisher not identified], 1951.

MLA (9th ed.) Citation

Clark, John Maurice. Economic Means, to What Ends?: A Problem in the Teaching of Economics. [publisher not identified], 1951.