| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Guide de l'assainissement individuel | 978-92-4-254443-5 (92-4-254443-4) | 1995 | J Pickford |
| Guide to the Development of On-site Sanitation | 978-92-4-154443-6 (92-4-154443-0) | 1992 | J. Pickford · R. Reed |