Use blockquotes in Bootstrap to quote other sources. You are allowed to quote from other sources without being penalized for it. Quoting someone is not the same as plagiarizing their content.
How to use the Blockquote code for Bootstrap
Below is an example on how you can use blockquotes in Bootstrap to quote other sources. if you want your blockquote to float to the right just use this class on it, ".blockquote-reverse".
<h1>Blockquotes</h1>
<p>Use blockquotes to represent content from another source :</p>
<blockquote>
<p>A1WEBSITEPRO has been coding html since the 90's</p>
<footer>From A1WEBSITEPRO.COM</footer>
</blockquote>
Try it here yourself.