Considering language use in the text, it’s correct to say:
MIRCHANDANI, Rajesh. Polar bears will be protected in Alaska. Disponível em:<<www.bbc.co.uk/worldservice/learningenglish/language/wordsinthenews/2010/11/100929_with_polarbears_page.shtml>. Acesso em: 2 dez. 2010.