Unsure what format of citation this is. Here are some sample citations that show the format I need to use. For this paper, one of the citations must be from a scientific paper. (Instructions in attached file).

Beschta, R. L.  2005.  Reduced cottonwood recruitment following extirpation of wolves from Yellowstones northern range.  Ecology 86:391-406.

Cahill, J. A., R. E. Green, T. L. Fulton, M. Stiller, F. Jay, N. Ovsyanikov, R. Salamzade, J. St. John, I. Stirling, M. Slatkin, and B. Shapiro.  2013.  Genomic evidence for island population conversion resolves conflicting theories of polar bear evolution.  PLoS Genetics 9:e1003345.

Hall, E. R.  1981.  The Mammals of North America, 2nd Edition.  John Wiley and Sons, New York.

Highton, R. and R. B. Peabody.  2000.  Geographic protein variation and speciation in salamanders of the Plethondon jordani and Plethodon glutinosus complexes in the southern Appalachian Mountains with the description of four new species.  Pp. 31-93 in R. C. Bruce, R. G. Jaeger, and L. D. Houck, eds., The Biology of Plethodontid Salamanders.  Academic Press, New York.