I'm in the final year of my undergraduate studies and now I'm writing my final year report. In my thesis, there're certain things I need to mention and I find that I lack of words to describe the phenomena. However, I find there's a certain paragraph in a book that describe very well. I intend to copy the words about 80-90 words and put it in my thesis. I'll cite the origin of the words from this book. But, I'm not sure, in writing a thesis, is it a good idea to copy the words exactly from the book? Let's say there're a few sentences that I copy, I need to put the citation after the last sentence? or in every sentence, I need to put the citation from the same book.