Cita APA

Gide, C., Jacobsen, E. P., & Bonar, J. (1891). Principles of political economy. D.C. Heath & Co.

Citación estilo Chicago

Gide, Charles, Edward Percy Jacobsen, and James Bonar. Principles of Political Economy. Boston: D.C. Heath & Co, 1891.

Cita MLA

Gide, Charles, et al. Principles of Political Economy. D.C. Heath & Co, 1891.