Cita APA (7th ed.)

International Economic Association, Lutz, F. A., & Hague, D. C. (1961). The theory of capital. Macmillan.

Cita Chicago (17th ed.)

International Economic Association, Friedrich August Lutz, i Douglas Chalmers Hague. The Theory of Capital. Lond.: Macmillan, 1961.

Cita MLA (8th ed.)

International Economic Association, et al. The Theory of Capital. Macmillan, 1961.