What is the ISBN of Sold novel?

There are actually a few different ISBNs for the novel "Sold" by Patricia McCormick.

Here are a few examples:

* ISBN-13: 978-0375838725 - This is the ISBN for the hardcover edition published by Farrar, Straus and Giroux.

* ISBN-13: 978-0375838732 - This is the ISBN for the paperback edition published by Farrar, Straus and Giroux.

* ISBN-13: 978-1451617666 - This is the ISBN for the audiobook edition.

You may also find other ISBNs depending on the specific edition or retailer you are looking at.