APA Style

Magazine, N, G. (2013). National Geographic Magazine, May 2013: This Baby Will Live to Be 120 (Vol. 223, No. 5). : National Geographic Society.

MLA Style

Magazine, National, Geographic. "National Geographic Magazine, May 2013: This Baby Will Live to Be 120". Vol. 223, No. 5 : National Geographic Society, 2013. Text.