A summary is a condensed version of a longer passage from a outside source. Like a paraphrase, it is written in your own words.

The MLA requires you to include the author's name and page number.

Author Incorporated into Text

Kafka describes the insecurities of his youth, analyzing his social shortcomings in school and his rocky relationship with his father (44-46).

Author After Paraphrase

The internet has greatly impacted the way information is exchanged. Recent applications like social networking, blogging and microblogging sites will impact the way that high school students are taught in the classroom. Curriculum changes, however, will likely come much later than the behavioral shift of that population (Hines 177).