| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The birds of CITES and how to identify them | 978-O-7188-2894-3 (O-7188-2894-1) | 1993 | Johannes Erritzoe · the author · foreword by H. R. H. Prince Philip |
B. B. · H B · I. B. · Illustrated b · Illustrated by
illustrated by Helga Boullet Erritzoe and the author