Não informado. (1973). Index of Conference Proceedings Received. British Library, Lending Division.
Chicago-Zitierstil (17. Ausg.)Não informado. Index of Conference Proceedings Received. Boston, Inglaterra: British Library, Lending Division, 1973.
MLA-Zitierstil (8. Ausg.)Não informado. Index of Conference Proceedings Received. British Library, Lending Division, 1973.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.