In the author-date style, in-text references contain the name of the author(s), the year of publication of the document, and page number if applicable. Enclose the name and year in parenthesis. Leave a space between name and year. No punctuation is necessary.
In the most recent report, Brown (2006) states the use of . . .
(Brown 2006, 9)
(Grazer and Fishman 2015, 188)
In their article, Grazer and Fishman (2015, 188) discuss . . .
(Berman, Bauer, and Nold 2011, 7-10)
Four or more authors:
(Williams et al. 2018, 2)