APA引文

American Library Association & Article 19 (Organization). (1991). Information freedom and censorship: World report 1991. American Library Association.

Chicago Style (17th ed.) Citation

American Library Association and Article 19 (Organization). Information Freedom and Censorship: World Report 1991. Chicago: American Library Association, 1991.

MLA引文

American Library Association and Article 19 (Organization). Information Freedom and Censorship: World Report 1991. American Library Association, 1991.