APA

Beloff M., . (1959). The american federal government. Estados Unidos: Oxford University Press.

Chicago

Beloff Max, . 1959. The american federal government. Estados Unidos: Oxford University Press.

Harvard

Beloff M., . (1959). The american federal government. Estados Unidos: Oxford University Press.

MLA

Beloff Max, . The american federal government. Estados Unidos: Oxford University Press. 1959.