N.p., n.d. Web.
"What You Need to Know about Animals in the North Pole." InfoBarrel. N.p., n.d. Web. 03 Dec. 2015.
"North Pole." National Geographic Education. N.p., 06 Nov. 2010. Web. 03 Dec. 2015.
"National Snow and Ice Data Center." All About Sea Ice. N.p., n.d. Web. 03 Dec. 2015.
Bio.com. A&E Networks Television, n.d. Web. 03 Dec. 2015.
N.p., n.d. Web. 02 Dec. 2015.
"How North Pole Expeditions Work." HowStuffWorks. N.p., 31 Mar. 2008. Web. 03 Dec. 2015.
"10 Things You Never Knew About the North Pole." Budget Travel. N.p., 21 Dec. 2012. Web. 03 Dec. 2015.
"Arctic Explorers - EnchantedLearning.com." Arctic Explorers - EnchantedLearning.com. N.p., n.d. Web. 03 Dec. 2015.
"What You Need to Know about Animals in the North Pole." InfoBarrel. N.p., n.d. Web. 03 Dec. 2015.
"North Pole." National Geographic Education. N.p., 06 Nov. 2010. Web. 03 Dec. 2015.
"National Snow and Ice Data Center." All About Sea Ice. N.p., n.d. Web. 03 Dec. 2015.
Bio.com. A&E Networks Television, n.d. Web. 03 Dec. 2015.
N.p., n.d. Web. 02 Dec. 2015.
"How North Pole Expeditions Work." HowStuffWorks. N.p., 31 Mar. 2008. Web. 03 Dec. 2015.
"10 Things You Never Knew About the North Pole." Budget Travel. N.p., 21 Dec. 2012. Web. 03 Dec. 2015.
"Arctic Explorers - EnchantedLearning.com." Arctic Explorers - EnchantedLearning.com. N.p., n.d. Web. 03 Dec. 2015.