The correct answer is The page number only
Since you've already mentioned who the author is, you don't have to mention him again. The book title would only be added if you're using multiple sources from the same author. If only one, then the page number only.
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I believe he did that in order <span>to teach children how to interact with adults.
He was aware of his own surroundings in which children were impolite towards adults so he wanted to show what happens in the animal world. He wanted to portray young animals as polite and respectful, unlike human children who were unruly.</span>
When news stations were talking about the immigrant families being separated from children can be very biased because some news anchors support Trump in whatever he is doing and other do not support him or agree with what he is doing it can be problematic because the news anchors in favor of trump will only talk about the good things about him meanwhile the ones opposed to him will talk about bad things about him
