Não informado. (1982). Work and occupations. Lage Publications.
Style de citation Chicago (17e éd.)Não informado. Work and Occupations. Newbury Park, Calif: Lage Publications, 1982.
Style de citation MLA (8e éd.)Não informado. Work and Occupations. Lage Publications, 1982.
Attention : ces citations peuvent ne pas être correctes à 100%.