(1978). Annual Report of the Librarian of Congress for the Fiscal Year Ending September 30, 1977.
Citazione stile Chigago Style (17a edizione)Annual Report of the Librarian of Congress for the Fiscal Year Ending September 30, 1977. 1978.
Citatione MLA (9a ed.)Annual Report of the Librarian of Congress for the Fiscal Year Ending September 30, 1977. 1978.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.