Gaya APA
Annual report of the librarian of Congress: For the fiscal year ending June 30, 1970. (1971).
Wahington:
Library of Congress.
Gaya Chicago
Annual report of the librarian of Congress: For the fiscal year ending June 30, 1970.
.
Wahington:
Library of Congress,
1971.
Reference.
Gaya MLA
Annual report of the librarian of Congress: For the fiscal year ending June 30, 1970.
.
Wahington:
Library of Congress,
1971.
Reference.
Gaya Turabian
Annual report of the librarian of Congress: For the fiscal year ending June 30, 1970.
Wahington:
Library of Congress,
1971.
Reference.