I am writing my first Linguistic thesis and am struggling with a question I can't find an answer to. Since it is a Linguistic paper I need some word and abbreviation examples, which are provided by one of David Crystal's books. The issue is that I don't really know how to use his examples without ending up plagiarising. I read the APA style 7th edition so many times, searched the internet...I can't find a good solution, I hope my question is not stupid and I hope someone can help me. Thank you :-)
I won't speak to citation style, which is irrelevant for questions of plagiarism. But if you cite everything you use then you aren't plagiarizing. Plagiarizing is about attribution and by citing you avoid it.
However, you also have the problem of copyright if you are taking too much from a single source. And "too much" can mean both or either of too many words or enough of the essence of a work that you lessen its value.
If all or most of your examples come from one book, I think you need to worry about copyright. But if you draw from several sources you greatly lessen that risk, though you must cite everything, of course.
It is also possible to avoid copyright issues by getting an explicit license from the copyright holder, probably the publisher of the book, but possibly the author.