• THORNTON, JOHN L

The Indexer: The International Journal of Indexing (1973), 8, (4), 206–209.

• Wallis, Elizabeth
• Bakewell, K. G. B.
• THORNTON, JoHN L

The Indexer: The International Journal of Indexing (1971), 7, (4), 204–208.

• BANCROFT, RICHARD
• THORNTON, JoHN L.

The Indexer: The International Journal of Indexing (1958), 1, (4), 112–116.