| title | ISBN-13 | year of publication |
|---|---|---|
| Estadistica Para Psicologia Usando Spss Para Windows Robert C. Gardner | 978-970-26-0347-4 | 2016 |
| Motivation and Second Language Acquisition: The Socio-Educational Model | 978-1-4331-0459-6 | 2010 |
| Psychological Statistics Using SPSS for Windows | 978-0-13-028324-5 | 2000 |
| Red Brigades: The Story of Italian Terrorism | 978-0-312-03593-8 | 1990 |
C. G. · C. Gardner · R. C. · R. Gardner · Robert C. · Robert G. · Robert Gardner
Peter Lang Inc., International Academic Publishers · Prentice Hall · St. Martin's Press