| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | 
|---|---|---|---|---|
| Understanding and Interpreting Educational Research | Paperback | 978-1-4625-0962-1 (1-4625-0962-2) | 2013 | Ronald C. Martella · J. Ron Nelson · Nancy E. Marchand-Martella | 
| Understanding and Interpreting Educational Research | Hardcover | 978-1-4625-0974-4 (1-4625-0974-6) | 2013 | Ronald C. Martella · J. Ron Nelson · Nancy E. Marchand-Martella | 
L.M. · R. L · R. M. · R. Morgan · Robert L. · Robert L. Morgan PhD · Robert M. · Robert Morgan