| title | ISBN-13 | year of publication |
|---|---|---|
| George Bockl On real estate investing: How to build a big, growing income year after year | 978-0-13-352724-7 | 1977 |
| How Real Estate Fortunes Are Made. | 978-0-13-431106-7 | 1975 |
| How real estate fortunes are made | 978-0-13-431098-5 | 1972 |
| How to Use Leverage to Make Money in Local Real Estate | 978-0-13-436212-0 | 1965 |
| Recycling real estate: The #1 way to make money in the 80's | 978-0-13-768804-3 | 1983 |