Kaplan Business · Kaplan Publishing
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Pennsylvania Continuing Education for Real Estate Salespersons & Brokers | 978-0-7931-0638-7 | 1993 | James Skindzier |
| Real Estate Brokerage | 978-1-4277-6640-3 | 2008 | John E Cyr · Joan Sobeck |
| Real Estate Brokerage: A Management Guide | 978-0-7931-6785-2 | 2003 | Joan Sobeck · John Cyr |
| Real Estate Brokerage: A Management Guide | 978-1-4277-9553-3 | 2003 | Joan Sobeck · John Cyr |
| Texas Real Estate Brokerage: A Management Guide | 978-1-4277-7086-8 | 2008 | Joan Sobeck · John E Cyr |