| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Mediaeval English Literature | 978-0-19-888043-1 (0-19-888043-X) | 1969 |
| On the History of the Ballads, 1100-1500 | 978-1-4622-0214-0 (1-4622-0214-4) | 2014 |
| Tennyson: The Leslie Stephen Lecture, 1909 | 978-1-107-67995-5 (1-107-67995-8) | 2014 |
P.K. · W. K. · W.P. · W. P. Ker · W Paton · William K. · William P. · William P. Ker · William Paton
Cambridge University Press · Oxford University Press · Repressed Publishing