Modern Spanish Grammar Workbook (Modern Grammar Workbooks)

Perfect for self learning.

I have in my hands Modern Spanish Grammar Workbook 2nd edition ISBN: 0415273064which, according to the back cover, goes with Modern Spanish Grammar 2nd edition ISBN: 0415273048I have in my hands Modern Spanish Grammar A Practical Guide 2nd edition ISBN: 0415273048which, according to the back cover, goes with Modern Spanish Grammar Workbook 2nd edition ISBN: 0415273064I can't explain the different ISBN of this book:Modern Spanish Grammar A Practical Guide 2nd editionISBN-10: 041527303XISBN-13: 978-0415273039I wonder what workbook it matches?

Worked well with the companopn volume Spanish Grammar but a little thin on content for the price.