Single Author | 6th Edition
When you list the source of information you are using in your paper, you need to list the last name of the author (without his or her initials), followed by a comma, and then the year of publication. If you refer to the author(s) directly in your text, then you only list the year (and page number, if needed).
One scholar argued that it is impossible to measure social class (Calvert, 1982).
Calvert (1982) argued that it is impossible to measure social class.