How should I list this intern position?

Applying to College
1

<p>This summer I am doing research in a lab that I was in last year. Last year I was in the lab through a paid research program. This year I'm not in any program and am not being paid</p>

<p>How exactly should I list this on my resume (regarding the time in between this summer and last in which I wasn't doing research in the lab)?</p>

<p>Thanks!</p>

2

<p>10charbump</p>

3

<p>Summers:
Worked in “x” lab doing “y” research under Dr. “z” for two years. Year One: through program “a”. Year Two: independent research</p>