You may encounter three problems with newspaper articles - they sometimes do not credit their authors, or have titles or headlines, and sometimes they have neither. Below are some guidelines in this regard.
.... (Opec countries agree to keep oil output steady, 2001). (without author)
( no author or no headline)
FORMAT OF REFERENCE TO A PRINTED NEWSPAPER ARTICLE - AUTHOR NAME SUPPLIED
Author’s Surname, Initials. Year. ‘Title of the article’, Name of the newspaper (in italics). Date of issue: Page number(s).
Note that the title of the article or news item must be placed in quotation marks.
Jones, D. 2001. 'Asmal says life-skills education will be enforced in every school', Business Day. 22 August: 4.
FORMAT OF REFERENCE TO A NEWSPAPER ARTICLE - AUTHOR NAME NOT SUPPLIED
If the newspaper article does not indicate its author, then it must be cited under the title of the article.
Title (or headline) of news item. Year. Title of Newspaper (in italics). Date of Issue: Page numbers.
Opec countries agree to keep oil output steady. 2001. Business Day. 27 September: 8.
FORMAT OF REFERENCE TO A NEWSPAPER ARTICLE - AUTHOR NAME AND TITLE NOT SUPPLIED
If neither the name of the author nor the headline of the report is given, make an entry under the name of the newspaper.
Name of newspaper (in italics). Year. Date: Page number.
Business Day. 2001. 27 September: 6.
EXAMPLE OF AN ELECTRONIC NEWSPAPER ARTICLE
Khumalo, K. 2018. 'World Bank foresees more modest 1.4 % growth for South Africa' [online], Business Report, 11 April.
Available from: <https://www.iol.co.za/business-report/international/world-bank-foresees-more-modest-14-growth-for-sa-14367465> [Accessed on: 11 April 2018]