| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2006 | 978-0-911592-28-3 | Frank R Walker Company ยท J. Ratner | Walker's Building Estimator' Reference Book |
| 1982 | 978-0-911592-60-3 | Harry Hardenbrook | Walker's Remodeling Estimator's Reference Book |
| 1998 | 978-0-911592-62-7 | Harry Hardenbrook | F.R. Walker's Remodeling Reference Book: A Guide for Accurate Remodeling Cost Estimates for Construction Professionals and Homeowners |