Cita APA (7th ed.)

Villaroel Claure, R. (1963). Bolivia. Pan American Union.

Cita Chicago (17th ed.)

Villaroel Claure, Rigoberto. Bolivia. Washington: Pan American Union, 1963.

Cita MLA (9th ed.)

Villaroel Claure, Rigoberto. Bolivia. Pan American Union, 1963.