| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| From Principles to Best Practices: A "Making Markets Matter" Guide to Managing African Agribusinesses | 978-O-692-41734-8 (O-692-41734-6) | 2015 |
R. C. · Ralf Carstens · Ralf Christensen · Ralf Christoferi · Ralf Christofori · Ralf Christofou · Ralph Christensen · Ralph Christoph · Ralph Christopher · Ralph D Christy · Rolf Christerson · Rolf Christiansen