| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Establishment of Environmentalism on the U.S. Political Agenda in the Second Half of the Twentieth Century-The Brothers Udall | 978-O-7734-6358-5 (O-7734-6358-5) | 2004 |
H.S. · Heiner Schwarze · Henri Schurz · Henry Schrage · Henry Schwarz · Henry Serruys