Estados Unidos. Library of Congress. (1959). Classification: History class D, general and old world (2a. ed.). Library of Congress.
Citazione stile Chigago Style (17a edizione)Estados Unidos. Library of Congress. Classification: History Class D, General and Old World. 2a. ed. Washington: Library of Congress, 1959.
Citatione MLA (9a ed.)Estados Unidos. Library of Congress. Classification: History Class D, General and Old World. 2a. ed. Library of Congress, 1959.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.