Cita APA (7a ed.)
Katzner, K. (1975). The languages of the world. Funk & Wagnalls.
Cita Chicago Style (17a ed.)
Katzner, Kenneth. The Languages of the World. New York: Funk & Wagnalls, 1975.
Cita MLA (9a ed.)
Katzner, Kenneth. The Languages of the World. Funk & Wagnalls, 1975.
Precaución: Estas citas no son 100% exactas.