publisher: Pearson PTR Interactive publish date: March 1st 1999
format: paperback pages: 138
language: English
ISBN:
0139082379 (9780139082375)
publisher: Pearson ESL publish date: December 1st 2000
format: paperback pages: 144
ISBN:
0139083103 (9780139083105)
ISBN:
0131838067 (9780131838062)