Cita APA

Welch, T. L., & Gutiérrez, R. L. (1990). The organization of American States: A bibliography. Washington: Columbus Memorial Library.

Citación estilo Chicago

Welch, Thomas L., y Rene L. Gutiérrez. The Organization of American States: A Bibliography. Washington: Columbus Memorial Library, 1990.

Cita MLA

Welch, Thomas L., y Rene L. Gutiérrez. The Organization of American States: A Bibliography. Washington: Columbus Memorial Library, 1990.