A single source
Answer
In the following examples, an article by Spink and Jansen, published in 2004, is being cited:
Example 1
The amount of research about information-seeking behaviour on the Internet that is coming from non-English-speaking countries is increasing (Spink and Jansen, 2004, p.28).
Example 2
Spink and Jansen (2004, p.28) note that the amount of research about information-seeking behaviour…
When you’re using in-text citations, proof-read your work carefully: it’s important that your work makes sense in terms of punctuation and grammar when you ignore the information in the brackets of your in-text citations.
Example of a badly written citation
In a study (Spink and Jansen, 2004, p.28) note that the amount of research…
This doesn’t make sense if you take out the bracketed in-text citation. Instead you could write:
In a study, Spink and Jansen (2004, p.28) note that the amount of research
