There are several ways of including sources in your work. You can summarise, paraphrase or directly quote the information. Whichever you use, you let your reader know by setting out the referencing details in a subtly different way as below.
Longer quotations should be indented from the main text as a separate paragraph. Quotation marks are not required.
In-text example:
Most people are biased in one way or another. Person bias, sometimes called the fundamental attribution error, is claimed to be the most common.
So we see a nurse, or a teacher or a policeman or policewoman
going about their business and tend to judge them as being particular
types of people rather than as people being constrained by the roles
that they are playing in their work (Strongman, 2006, p. 94).
Reference example:
Strongman, K. T. (2006) Applying psychology to everyday life: a beginner’s guide. Chichester: John Wiley and Sons Ltd.