Bell, J. P. (1971). Crisis in Costa Rica: The 1948 revolution. University of Texas Press.
Chicago-čujuhus (17. p.)Bell, John Patrick. Crisis in Costa Rica: The 1948 Revolution. Austin: University of Texas Press, 1971.
MLA-čujuhus (9. p.)Bell, John Patrick. Crisis in Costa Rica: The 1948 Revolution. University of Texas Press, 1971.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.