| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Many Mexicos: Fourth edition Revised | 978-0-520-01180-9 (0-520-01180-5) | 1960 |
| The Poem of the Cid | 978-0-520-25010-9 (0-520-25010-9) | 2007 |
| The Poem of the Cid | 978-0-520-01176-2 (0-520-01176-7) | 1962 |
B.S. · B. Simpson · L B · L.S. · L. Simpson · Lesley Byrd Simpson · Lesley Simpson