| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Snip Snap: Activity Bk Stage A | 978-0-435-28870-9 | 1990 | L. Concari · Joanie Urrestarazu |
| Snip Snap: Activity Book Stage B | 978-0-435-28872-3 | 1991 | L. Concari · Joanie Urrestarazu |
| Snip Snap: Cards Stage A | 978-0-435-28871-6 | 1990 | L. Concari · Joanie Urrestarazu |
| Snip Snap: Cassette Stage A | 978-0-435-28212-7 | 1990 | L. Concari · Joanie Urrestarazu |
| Snip Snap: Cassette Stage B | 978-0-435-28218-9 | 1991 | L. Concari · Joanie Urrestarazu |
| Snip Snap: Stage A | 978-0-435-28210-3 | 1990 | L. Concari · Joanie Urrestarazu |
| Snip Snap: Stage B | 978-0-435-28216-5 | 1991 | L. Concari · Joanie Urrestarazu |
| Snip Snap: Tchrs' Stage A | 978-0-435-28211-0 | 1990 | L. Concari · Joanie Urrestarazu |
| Snip Snap: Teachers' Book Stage B | 978-0-435-28217-2 | 1991 | L. Concari · Joanie Urrestarazu |
| Whizz Kids 1: Activity Book | 978-0-435-29505-9 | 1994 | L. Concari · Ursula Krieger · Joanie Urrestarazu |
| Whizz Kids 1: Cassettes | 978-0-435-29507-3 | 1994 | L. Concari · Ursula Krieger · Joanie Urrestarazu |
| Whizz Kids 1: Pupil's Book | 978-0-435-29504-2 | 1994 | L. Concari · Ursula Krieger · Joanie Urrestarazu |
| Whizz Kids 1: Resource Pack | 978-0-435-29508-0 | 1995 | L. Concari · Ursula Krieger · Joanie Urrestarazu |
| Whizz Kids 1: Teacher's Book | 978-0-435-29506-6 | 1994 | L. Concari · Ursula Krieger · Joanie Urrestarazu |
| Whizz Kids 2: Activity Book | 978-0-435-29510-3 | 1995 | L. Concari · Ursula Krieger · Joanie Urrestarazu |
| Whizz Kids 2: Cassettes | 978-0-435-29512-7 | 1995 | L. Concari · Ursula Krieger · Joanie Urrestarazu |
| Whizz Kids 2: Pupil's Book | 978-0-435-29509-7 | 1995 | L. Concari · Ursula Krieger · Joanie Urrestarazu |
| Whizz Kids 2: Resource Pack | 978-0-435-29513-4 | 1996 | L. Concari · Ursula Krieger · Joanie Urrestarazu |
| Whizz Kids 2: Teacher's Book | 978-0-435-29511-0 | 1995 | L. Concari · Ursula Krieger · Joanie Urrestarazu |
| Whizz Kids 3: Activity Book | 978-0-435-29515-8 | 1997 | L. Concari · Ursula Krieger · Joanie Urrestarazu |
| Whizz Kids 3: Cassettes | 978-0-435-29517-2 | 1997 | L. Concari · Ursula Krieger · Joanie Urrestarazu |
| Whizz Kids 3: Pupil's Book | 978-0-435-29514-1 | 1996 | L. Concari · Ursula Krieger · Joanie Urrestarazu |
| Whizz Kids 3: Resource Pack | 978-0-435-29518-9 | 1996 | L. Concari · Ursula Krieger · Joanie Urrestarazu |
| Whizz Kids 3: Teacher's Book | 978-0-435-29516-5 | 1997 | L. Concari · Ursula Krieger · Joanie Urrestarazu |