In APA, you must have a hanging indent of 5 to 7 spaces from the second line for each reference entry within the reference list / bibliography. The entries are in alphabetical order.
Note: When using multiple authors' names as part of your narrative, rather than in brackets, always spell out the word and. For multiple authors' names in-text within brackets, use &.
One author: (Glass, 2007)
Two authors: (White & Sutton, 2019)
Three to five authors:
First citation: (McDonald, Delaney, Lu, & McMahon, 2018)
Subsequent citations: (McDonald et al., 2010)
Six or more authors: (Byrne et al., 2006)
You may have noticed a number at the end of journal articles or ebooks and wondered what it signified.
What is a DOI?
Generally, a reference list contains only those sources you actually referred to within the body of your assignment. So, for each resource on your list, there will be some citation/reference in your assignment. Your marker will check these off as he/she reads through your work
A bibliography is a list of all the sources you looked at for the assignment. This list, also attached to the back of your assignment, contains all those books, articles, website, and so on, you cite in your assignment but also those ones you consulted but didn't actually cite/reference within your assignment.
Your lecturer will indicate whether they wish to have a reference list and a bibliography attached to the back of your assignment. However, most subjects require only a reference list. If you are unsure, check with your lecturer.