| title | ISBN-13 | year of publication |
|---|---|---|
| An Introduction to Transportation Planning | 978-0-09-122461-5 | 1975 |
| Introduction to Transportation Planning | 978-0-09-098620-0 | 1970 |
| Spirit and Purpose of Planning | 978-0-09-119960-9 | 1974 |
| The Spirit and Purpose of Planning | 978-0-09-119961-6 | 1974 |