Cambridge University Press · Northern Illinois University Press
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Duck Calls of Illinois, 1863-1963 | 978-0-87580-183-4 (0-87580-183-8) | 1994 | |
| Neonatal Hematology: Pathogenesis, Diagnosis, and Management of Hematologic Problems | 978-0-521-11931-3 (0-521-11931-6) | 2013 | Pedro de Alarcón · Eric Werner |
D.C. · R. C. · R.D. · Robert C. · Robert D. · Robert D. Christensen MD · Robert D., M.D. Christensen