Não informado. (1970). Air and water news. Air and Water News.
Style de citation Chicago (17e éd.)Não informado. Air and Water News. New York: Air and Water News, 1970.
Style de citation MLA (8e éd.)Não informado. Air and Water News. Air and Water News, 1970.
Attention : ces citations peuvent ne pas être correctes à 100%.