APA

International Economic Association, Lutz F. A. & Hague D. C. (1961). The theory of capital: proceedings of a conference held by the International Economic Association. London: Macmillan.

Chicago

International Economic Association, Lutz Friedrich A and Hague Douglas Chalmers. 1961. The theory of capital: proceedings of a conference held by the International Economic Association. London: Macmillan.

Harvard

International Economic Association, Lutz F. A. and Hague D. C. (1961). The theory of capital: proceedings of a conference held by the International Economic Association. London: Macmillan.

MLA

International Economic Association, Lutz Friedrich A and Hague Douglas Chalmers. The theory of capital: proceedings of a conference held by the International Economic Association. London: Macmillan. 1961.