T/K ยท Theodor Klotz
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Teaching Social Studies in the Elementary School: The Basics for Citizenship | 978-0-13-895657-8 (0-13-895657-X) | 1987 |
| Teaching social studies in the elementary school: The basics for citizenship | 978-0-13-895631-8 (0-13-895631-6) | 1979 |