Library of Congress. Copyright Office. (1985). Copyright basics. Copyright Office, Library of Congress.
Chicago Style (17th ed.) CitationLibrary of Congress. Copyright Office. Copyright Basics. Washington, D.C.: Copyright Office, Library of Congress, 1985.
ציטוט MLALibrary of Congress. Copyright Office. Copyright Basics. Copyright Office, Library of Congress, 1985.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.