Cites del registre

Cita APA (7th ed.)
(1949). Seeing U.S.A. through maps. C. H. Hammond.
Cita Chicago (17th ed.)
Seeing U.S.A. Through Maps. C. H. Hammond, 1949.
Cita MLA (9th ed.)
Seeing U.S.A. Through Maps. C. H. Hammond, 1949.
Atenció: Aquestes cites poden no estar 100% correctes.