| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Search and Social: The Definitive Guide to Real Time Content Marketing | 978-81-265-4250-5 (81-265-4250-0) | 2013 |
| Search and Social: The Definitive Guide to Real-Time Content Marketing | 978-1-118-26438-6 (1-118-26438-X) | 2012 |