"E. K." · Eckart Kirn · Elaine Kirn · Eva Kirn-Frank
| title | ISBN-13 | year of publication |
|---|---|---|
| Etc 2 English in Everyday Life: A Competency Based Listening - Speaking Book | 978-0-07-553755-7 | 1988 |
| Etc 2 English in Everyday Life: A Competency Based Reading - Writing Book | 978-0-07-553757-1 | 1988 |
| Etc 3 an Immigration Story a Competency Based Reading Writing Book | 978-0-07-553767-0 | 1988 |
| Etc 6 Issues and Answers a Competency Based Grammar | 978-0-07-556992-3 | 1989 |
| Etc 6 Issues and Answers a Competency Based Listening Speaking Book | 978-0-07-556993-0 | 1988 |
| Interactions 1 A Reading Skills Book | 978-0-07-557524-5 | 1990 |