Q. How would I list a book/journal article that has two authors?

If the source of information (book, journal article, etc.) has two authors you need to put an 'and' between their names:

In-text citation

(Antrill and McLaney, 2015)

Reference list

Atrill, P. and McLaney, E. (2015) Management accounting for decision makers, 8th edition. Harlow: Pearson Education.