A digital object identifier (DOI) is a combination of letters and numbers string assigned by a registration agency (the International DOI Foundation) to identify content. The publisher assigns a DOI when your article is published and made available electronically.
It is recommended that when DOIs are available, include them for both print and electronic sources. The DOI is usually located on the first page of the electronic journal article, near the copyright notice. The DOI can also be found on the database landing page for the article.
example
Journal
Author, A. A. (Year of publication). Title of article. Title of Journal, volume(issue), pp. xxx-xxx. https://doi.org/xxxxx
Pashkova-Balkenhol, T., Lenker, M., Cox, E., & Kocevar-Weidinger, E. (2019). Should we flip the script?: A literature review of deficit-based perspectives on first-year undergraduate students’ information literacy. Journal of Information Literacy, 13(2), 92-111. https://dx.doi.org/10.11645/13.2.2619
Ebook
Author, A. A. (Year of publication). Title of book. Publisher. https://doi
Brown, L. S. (2018). Feminist therapy (2nd ed.). American Psychological Association. https://doi.org/10.1037/0000092-000
For example:
In-text citation
( Author, n.d.)
(Southey, n.d.)
Some examples of editions you may have seen are:
In-text citation
(Author, Year, p. xx) or Author (Year)
(Dossey et al., 2011, p. 135) or Parker (2006)
Reference list
Author, A. A. (Year of publication). Title of work (x ed.). Publisher.
Burchfield, R. W. (2004). Fowler’s modern English usage (3rd rev. ed.). Oxford University Press.
Dossey, B. M., Keegan, L., & Barrere, C. (2016). Holistic nursing: A handbook for practice (7th ed.). Jones & Bartlett Learning.
Parker, M. E. (2006). Nursing theories and nursing practice (2nd ed.). F. A. Davis.