A DOI or URL must be used when referencing resources in APA 7. Please see attached link for further information.
When referencing books and eBooks, please refer to the 'Components of book and eBook citation' section and click on DOI, for guidelines for referencing.
For Journals, Newspapers and Magazines, please refer to the DOI section of this tab for guidelines to reference a journal article both with and without a DOI.
