I'm writing a paper on The Beatles and in this paragraph I'm talking about the formation of the group. I got the info from their biographical book. So it's just a summarized version of a chapter. I have no idea how to state that this info is from a book?
2 Answers
You are paraphrasing the material, not quoting it. (You summarized it.) Put the citation at the end of the paragraph and add the source to your bibliography.

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Summarizing a chapter in a paragraph and citing it at the end, I think, is not a good idea.
It is better to write
Simpson mentions the formation of the group in Chapter 5 of History of The Beatles [12].
And then write your paragraph in italic.
Actually, if you can, put citations at the end of each 2-3 sentences. The following example is more proper when writing an academic manuscript.
The Famous English Rock Band Beatles was formed in 1957 [34]. First, John Lennon, the founder of the band, named the band as The Blackjacks. Then, with Paul McCartney joining the band, the name was changed to The Quarrymen [21].

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