I ran across a great article on how to cite sources when blogging. The main point is that you should quote, give attribution, and link back.
“But there’s still some internet etiquette that goes along with quoting someone other than just throwing some quotation marks around their statement. Here’s an internet-friendly way to quote someone in your content (taken from an old blog post of ours)” See the link below for the blog post
Corey Eridon, HubSpot Blogs,