D.W. · Douglas J. Whaley · Douglas W.
| title | ISBN-13 | year of publication |
|---|---|---|
| Gilbert Law Summaries: Commercial Paper & Payment Law 16th Edition | 978-0-314-16649-4 | 2006 |
| Gilbert Law Summaries on Commercial Paper and Payment Law | 978-0-314-28269-9 | 2013 |
| Gilbert Law Summaries on Sale and Lease of Goods | 978-0-314-28267-5 | 2013 |
| Gilbert Law Summaries on Secured Transactions | 978-0-314-28268-2 | 2013 |
| Sum and Substance Audio on Commercial Paper and Payment Law | 978-0-314-18063-6 | 2008 |
| Sum and Substance Audio on Contracts | 978-0-314-18065-0 | 2008 |
| Sum and Substance Audio on Contracts | 978-0-314-18078-0 | 2007 |
| Sum and Substance Audio on Sale and Lease of Goods | 978-0-314-15963-2 | 2005 |