Cita APA

(1970). U.S.A.: Its geography and growth. [s.l.]: United States Information Service.

Chicago Style Citation

U.S.A.: Its Geography and Growth. [s.l.]: United States Information Service, 1970.

Cita MLA

U.S.A.: Its Geography and Growth. [s.l.]: United States Information Service, 1970.

Atenció: Aquestes cites poden no estar 100% correctes.