The only alternative without a pair of opposites is
LOBEL, Mark. Disponível em: <www.bbc.co.uk/worldservice/learningenglish/language/wordsinthenews/2011/04/110411_witn_floating_debris_page.shtml>. Acesso em: 4 jun. 2010.
LOBEL, Mark. Disponível em: <www.bbc.co.uk/worldservice/learningenglish/language/wordsinthenews/2011/04/110411_witn_floating_debris_page.shtml>. Acesso em: 4 jun. 2010.