Cita APA

Mortara, G. (1964). Characteristics of the demographic structure of the American Countries. Pan American Union.

Citación estilo Chicago

Mortara, Giorgio. Characteristics of the Demographic Structure of the American Countries. Washington: Pan American Union, 1964.

Cita MLA

Mortara, Giorgio. Characteristics of the Demographic Structure of the American Countries. Washington: Pan American Union, 1964.