Is taking a method explanation from books and papers considered plagiarism?

I have been reading a few Q/A about plagiarism, but I still have a doubt about the use of books and papers to explain the method I am applying in my thesis.

I mixed up the infos I found in a book and in a paper to explain the method (because some parts where better explained in the book and some others in the paper), of course I cited them at the beginning and I put them in the bibliography. Is this considered plagiarism since I am not using "my words" to explain it?