Cita APA (7th ed.)

(1963). The World and its peoples: Spain, Portugal, Andorra, Gibraltar. Greystone Press.

Cita Chicago (17th ed.)

The World and Its Peoples: Spain, Portugal, Andorra, Gibraltar. New York: Greystone Press, 1963.

Cita MLA (8th ed.)

The World and Its Peoples: Spain, Portugal, Andorra, Gibraltar. Greystone Press, 1963.