"Text: Sean McArdle and Stuart Buchanan" -- Inside back cover.
Contents: Level A-B
Level C-E
Teacher's book.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Essential maths Scotland. Mental maths by Sean McArdle. ISBN 0748737138. Published by Stanley Thornes in 1998. Publication and catalogue information, links to buy online and reader comments.
