Cita APA (7a ed.)

Clark, V. S., Dearning, C. l., & Dickey, J. A. (1930). Porto Rico and its problems. The Brookings Institution.

Cita Chicago Style (17a ed.)

Clark, Víctor S., Charles l. Dearning, y James A. Dickey. Porto Rico and Its Problems. Washington, D.C.: The Brookings Institution, 1930.

Cita MLA (8a ed.)

Clark, Víctor S., et al. Porto Rico and Its Problems. The Brookings Institution, 1930.