| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Which do you prefer: Chunky or smooth | 978-0-00-637919-5 (0-00-637919-2) | 1992 |
| Would You Lend Your Toothbrush: More of What Canadians Borrow, Eat, Watch, Buy and Do...on an Average Day | 978-0-00-638054-2 (0-00-638054-9) | 1997 |