1. Write your hypothesis
2. Identify the relationship between the two sources that support your hypothesis.
3. Write a bibliography entry for both sources.
Shortening summer vacation has allowed students to retain more learning.
The article by Dr. Idunno notes that student test scores were substantially higher when summer vacation was shorter. Another study by John Doe exemplifies this claim in a study of Wisconson students. Doe found that students actually enjoyed shorter summers because they suffered from less boredom during the last weeks of vacation.
Doe, John J. "Less Summer More Smarts." Adolescent Education 28 Oct. 1999: 23-25.
Dunno, I. "Summer Fun Short." Modern Minutae 2nd ser. 56 (2001): 45-70.