Hello There. ☆~\---__^:◇:^__---\~☆ The answer to this is. Scholarly books and articles in scholarly journals.
Trade books and magazines geared toward an educated general audience, such as Police Chief magazine, Canadian Paramedicine, or Harvard Business Review.
Government documents, such as books, reports, and web pages.
Explanation: Ponyboy is really different out of the rest of the greasers and wasn't always really into gangs at the time so, he valued these three things.