| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Introducing Child Psychology | Hardcover | 978-0-631-21627-8 | 2003 |
| Introducing Child Psychology | Paperback | 978-0-631-21628-5 | 2003 |
| Making Decisions About Children: Psychological Questions and Answers | " | 978-0-631-20259-2 | 1998 |
| Social Development: An Introduction | " | 978-0-631-18574-1 | 1996 |
H.D. · H.R. Schaffer · H. Rudolph · H. Rudolph Schaffer · H.S. · R.D. · R. S. · Rudolph Schaffer · S D