R. C. · R. Yorkey · Richard C. · Richard Yorkey
| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Study Skills for Students of English as a Second Language | Paperback | 978-0-07-121371-4 | 2002 | |
| Study Skills for Students of English as a Second Language | Hardcover | 978-0-07-072316-0 | 1982 | Richard Yorkey |
| Study Skills for Students of English As a Second Language | Paperback | 978-0-07-072315-3 | 1970 | |
| The English Advantage: Activity Book 1A Bronze | " | 978-0-06-632622-1 | 1991 | Jacqueline Flamm · W. Leland Northam |
| The English Advantage: Activity Book, Level 1B | " | 978-0-06-632708-2 | 1991 | Jacqueline Flamm · W. Leland Northam |
| The English Advantage Level 1: Student's Book | " | 978-0-06-632621-4 | 1991 | Jacqueline Flamm · W. Leland Northam |
| The English Advantage Level 2: Activity Book A | " | 978-0-06-632626-9 | 1991 | Jacqueline Flamm · W. Leland Northam |
| The English Advantage Level 2: Student's Book | " | 978-0-06-632625-2 | 1991 | Jacqueline Flamm · W. Leland Northam |