Style de citation APA (7e éd.)
WORRALL, J., & ET AL. (1993). OPTICAL SERVICES AND THE ELDERLY: A SURVEY OF PROVISION AND USE. DERBYSHIRE COLLEGE OF HIGHER EDUCATION.
Style de citation Chicago (17e éd.)
WORRALL, J., et ET AL. OPTICAL SERVICES AND THE ELDERLY: A SURVEY OF PROVISION AND USE. DERBYSHIRE (UK): DERBYSHIRE COLLEGE OF HIGHER EDUCATION, 1993.
Style de citation MLA (9e éd.)
WORRALL, J., et ET AL. OPTICAL SERVICES AND THE ELDERLY: A SURVEY OF PROVISION AND USE. DERBYSHIRE COLLEGE OF HIGHER EDUCATION, 1993.
Attention : ces citations peuvent ne pas être correctes à 100%.