You may first introduce the Author or the article briefly before using a quotation. And then you can put a quote from author. At the end of the sentence of quotations you can use the author’s last name. And at the end, you can enter the website for citation.
For example: We’ll just use the name “John Doe” as the author.
This idea is further discussed by John Doe in the article “Article Title.” Blah blah blah. And again, this is true because “(enter quote here”. (Author Last Name)
Note: This is just a single case example. I recommend looking online for MLA format quotations, there are great resources with better examples. Good luck.