R. S. · Robert S. · Robert W. · W.S.
| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| A Perfect Lawn, the Easy Way | Hardcover | 978-0-02-606980-9 | 1973 |
| Lawn Keeping | Paperback | 978-0-13-526863-6 | 1976 |
| Lawn Keeping | Hardcover | 978-0-13-526889-6 | 1976 |
| Plants for man | " | 978-0-13-681254-8 | 1972 |