APA

Library of Congress, . (1987). LC period subdivisions under names of places: compiled from the online subject authority file of the Library of Congress by the Subject Cataloging Division. Washington, D.C: Cataloging Distribution Service, Library of Congress.

Chicago

Library of Congress, . 1987. LC period subdivisions under names of places: compiled from the online subject authority file of the Library of Congress by the Subject Cataloging Division. Washington, D.C: Cataloging Distribution Service, Library of Congress.

Harvard

Library of Congress, . (1987). LC period subdivisions under names of places: compiled from the online subject authority file of the Library of Congress by the Subject Cataloging Division. Washington, D.C: Cataloging Distribution Service, Library of Congress.

MLA

Library of Congress, . LC period subdivisions under names of places: compiled from the online subject authority file of the Library of Congress by the Subject Cataloging Division. Washington, D.C: Cataloging Distribution Service, Library of Congress. 1987.