Não informado. (1950). Water and sanitary engineer. DR Publications.
Style de citation Chicago (17e éd.)Não informado. Water and Sanitary Engineer. Surrey, Inglaterra: DR Publications, 1950.
Style de citation MLA (8e éd.)Não informado. Water and Sanitary Engineer. DR Publications, 1950.
Attention : ces citations peuvent ne pas être correctes à 100%.