Não informado. (1956). Swimming pool age. [s.n.].
Style de citation Chicago (17e éd.)Não informado. Swimming Pool Age. New York: [s.n.], 1956.
Style de citation MLA (8e éd.)Não informado. Swimming Pool Age. [s.n.], 1956.
Attention : ces citations peuvent ne pas être correctes à 100%.