Não informado. (1973). Index of Conference Proceedings Received. British Library, Lending Division.
Chicago-viite (17. p.)Não informado. Index of Conference Proceedings Received. Boston, Inglaterra: British Library, Lending Division, 1973.
MLA-viite (8. p.)Não informado. Index of Conference Proceedings Received. British Library, Lending Division, 1973.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.