| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| A Poet's Mind: Collected Interviews with Robert Duncan, 1960-1985 | 978-1-58394-454-7 (1-58394-454-0) | 2012 | Christopher Wagstaff · Robert Duncan |
| Heavenly Tree, Northern Earth | 978-1-55643-754-0 (1-55643-754-4) | 2009 | |
G L. · Gerd Langhein · Gerd Lüngen · Gerda Leinsinger · Gerrit Langenfeld · Gerritt Lansing