| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Ducks, geese, and swans of Africa and its outlying islands | Hardcover | 978-0-620-11443-1 (0-620-11443-6) | 1988 |
| Ducks, geese, and swans of Africa and its outlying islands | 978-0-620-11444-8 (0-620-11444-4) | ||
| Introduction to Southern African cage and aviary birds | Paperback | 978-0-620-09899-1 (0-620-09899-6) | 1986 |