Fried, S., 		Mackie, B., & 		Nothwehr, E.
(2012).
 Nitrate and phosphate levels positively affect the growth of algae species found in Perry Pond.
<em>Tillers, 4</em>, 21-24.
Retrieved from <a href="../../view/33.html" target="_new">https://ojs.grinnell.edu/index.php/tillers/article/view/33</a>